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FR320058A - Règle à calcul avec porte-plumes ou porte-mines - Google Patents

Règle à calcul avec porte-plumes ou porte-mines

Info

Publication number
FR320058A
FR320058A FR320058DA FR320058A FR 320058 A FR320058 A FR 320058A FR 320058D A FR320058D A FR 320058DA FR 320058 A FR320058 A FR 320058A
Authority
FR
France
Prior art keywords
pen
mechanical pencil
slide rule
rule
slide
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Kron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR320058A publication Critical patent/FR320058A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles
    • B43K29/08—Combinations of writing implements with other articles with measuring, computing or indicating devices
    • B43K29/093—Combinations of writing implements with other articles with measuring, computing or indicating devices with calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR320058D 1902-03-29 1902-03-29 Règle à calcul avec porte-plumes ou porte-mines Expired FR320058A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR320058T 1902-03-29

Publications (1)

Publication Number Publication Date
FR320058A true FR320058A (fr) 1902-11-29

Family

ID=1370585

Family Applications (1)

Application Number Title Priority Date Filing Date
FR320058D Expired FR320058A (fr) 1902-03-29 1902-03-29 Règle à calcul avec porte-plumes ou porte-mines

Country Status (1)

Country Link
FR (1) FR320058A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597523A (en) * 1950-07-13 1952-05-20 Michael J Quillinan Slide rule
US3261548A (en) * 1963-04-05 1966-07-19 Riehle Udo Writing implement with slide rule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597523A (en) * 1950-07-13 1952-05-20 Michael J Quillinan Slide rule
US3261548A (en) * 1963-04-05 1966-07-19 Riehle Udo Writing implement with slide rule

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