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CH489032A - Reader - Google Patents

Reader

Info

Publication number
CH489032A
CH489032A CH1468868A CH1468868A CH489032A CH 489032 A CH489032 A CH 489032A CH 1468868 A CH1468868 A CH 1468868A CH 1468868 A CH1468868 A CH 1468868A CH 489032 A CH489032 A CH 489032A
Authority
CH
Switzerland
Prior art keywords
reader
Prior art date
Application number
CH1468868A
Other languages
German (de)
Inventor
Johannes Grijpink Nicolaas
Original Assignee
Johannes Grijpink Nicolaas
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 Johannes Grijpink Nicolaas filed Critical Johannes Grijpink Nicolaas
Publication of CH489032A publication Critical patent/CH489032A/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH1468868A 1967-10-25 1968-10-01 Reader CH489032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6714461A NL6714461A (en) 1967-10-25 1967-10-25

Publications (1)

Publication Number Publication Date
CH489032A true CH489032A (en) 1970-04-15

Family

ID=19801552

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1468868A CH489032A (en) 1967-10-25 1968-10-01 Reader

Country Status (4)

Country Link
BE (1) BE720350A (en)
CH (1) CH489032A (en)
FR (1) FR1595615A (en)
NL (1) NL6714461A (en)

Also Published As

Publication number Publication date
BE720350A (en) 1969-02-17
NL6714461A (en) 1969-04-29
FR1595615A (en) 1970-06-15

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Legal Events

Date Code Title Description
PL Patent ceased