[go: up one dir, main page]

CH521242A - Self-adhesive blackboard film that can be written on with chalk - Google Patents

Self-adhesive blackboard film that can be written on with chalk

Info

Publication number
CH521242A
CH521242A CH730271A CH730271A CH521242A CH 521242 A CH521242 A CH 521242A CH 730271 A CH730271 A CH 730271A CH 730271 A CH730271 A CH 730271A CH 521242 A CH521242 A CH 521242A
Authority
CH
Switzerland
Prior art keywords
chalk
written
adhesive
self
blackboard film
Prior art date
Application number
CH730271A
Other languages
German (de)
Inventor
Bruno Dipl Ing Ch Krummenacher
Original Assignee
Novotherm Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novotherm Ag filed Critical Novotherm Ag
Priority to CH730271A priority Critical patent/CH521242A/en
Publication of CH521242A publication Critical patent/CH521242A/en
Priority to DE19722222611 priority patent/DE2222611A1/en
Priority to DE7217508U priority patent/DE7217508U/en
Priority to FR7217262A priority patent/FR2137894A1/fr
Priority to GB2291372A priority patent/GB1360540A/en
Priority to CH1172675A priority patent/CH570880A5/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/10—Writing surfaces thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drawing Aids And Blackboards (AREA)
  • Adhesive Tapes (AREA)
CH730271A 1971-05-17 1971-05-17 Self-adhesive blackboard film that can be written on with chalk CH521242A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH730271A CH521242A (en) 1971-05-17 1971-05-17 Self-adhesive blackboard film that can be written on with chalk
DE19722222611 DE2222611A1 (en) 1971-05-17 1972-05-09 Self-adhesive blackboard film that can be written on with chalk
DE7217508U DE7217508U (en) 1971-05-17 1972-05-09 SELF-ADHESIVE CHALKBOARD FILM, LETTERABLE WITH CHALK
FR7217262A FR2137894A1 (en) 1971-05-17 1972-05-15
GB2291372A GB1360540A (en) 1971-05-17 1972-05-16 Writing surface
CH1172675A CH570880A5 (en) 1971-05-17 1975-09-10 Writing sheet for chalking - mounted on supporting sheet of magnetisable metal for thin construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH730271A CH521242A (en) 1971-05-17 1971-05-17 Self-adhesive blackboard film that can be written on with chalk

Publications (1)

Publication Number Publication Date
CH521242A true CH521242A (en) 1972-04-15

Family

ID=4323005

Family Applications (1)

Application Number Title Priority Date Filing Date
CH730271A CH521242A (en) 1971-05-17 1971-05-17 Self-adhesive blackboard film that can be written on with chalk

Country Status (4)

Country Link
CH (1) CH521242A (en)
DE (2) DE2222611A1 (en)
FR (1) FR2137894A1 (en)
GB (1) GB1360540A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090464A (en) * 1975-06-25 1978-05-23 Bishopp John H Vandal guard sheet
DE20316799U1 (en) * 2003-10-31 2004-01-08 Schmich, Andreas Advertising material and advertising layout
DE202009007928U1 (en) 2009-06-06 2009-10-22 Apel, Uwe Changeable and reusable writing pad

Also Published As

Publication number Publication date
DE7217508U (en) 1976-09-02
DE2222611A1 (en) 1972-11-30
GB1360540A (en) 1974-07-17
FR2137894A1 (en) 1972-12-29

Similar Documents

Publication Publication Date Title
NL168171B (en) WRITING DEVICE OPERATING WITH FLUID DROPS.
CH510524A (en) Printing device with type tapes
DK132180B (en) Adhesive pen.
CH521242A (en) Self-adhesive blackboard film that can be written on with chalk
AR197507A1 (en) COMPAS PEN
CH538940A (en) Ink pen
CA893207A (en) Blackboard eraser
CH547924A (en) SELF-ADHESIVE SEALING STRIP WITH NON-DRYING GLUE FILM.
AT297975B (en) writing desk
AT297253B (en) writing desk
AT316049B (en) Flap holder with friction brake
CH539319A (en) Data carrier with a reading unit
AT320102B (en) Anaerobic adhesive
IT964853B (en) SIGNBOARD
NL148229B (en) SCHOOL LESSON WITH SLOPING TABLE TOP.
SU460873A1 (en) Lipka film
AT320316B (en) School blackboard with projection screen
SE407808B (en) SILICEL-MODIFIED POLYSULFID FOR USE IN A SEAL COMPOSITION
DE7132078U (en) WRITING PROJECTOR
NL170430C (en) SELF-ADHESIVE TAPE.
ES167833Y (en) WRITING AND SEALING DEVICE.
AT294360B (en) writing desk
CH513423A (en) Writing projector
DK138259C (en) WRITING TEMPLATE
ES160024Y (en) NEW SCHOOL BLACKBOARD.

Legal Events

Date Code Title Description
PL Patent ceased