CH612517A5 - - Google Patents

Info

Publication number
CH612517A5
CH612517A5 CH441177A CH441177A CH612517A5 CH 612517 A5 CH612517 A5 CH 612517A5 CH 441177 A CH441177 A CH 441177A CH 441177 A CH441177 A CH 441177A CH 612517 A5 CH612517 A5 CH 612517A5
Authority
CH
Switzerland
Application number
CH441177A
Inventor
Thomas J Persha
David Jagielski
Original Assignee
Bell & Howell Co
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 Bell & Howell Co filed Critical Bell & Howell Co
Publication of CH612517A5 publication Critical patent/CH612517A5/xx

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
    • G03B21/111—Projectors with built-in or built-on screen for microfilm reading of roll films

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Projection-Type Copiers In General (AREA)
CH441177A 1976-04-12 1977-04-07 CH612517A5 (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67565676A 1976-04-12 1976-04-12

Publications (1)

Publication Number Publication Date
CH612517A5 true CH612517A5 (zh) 1979-07-31

Family

ID=24711450

Family Applications (1)

Application Number Title Priority Date Filing Date
CH441177A CH612517A5 (zh) 1976-04-12 1977-04-07

Country Status (6)

Country Link
US (1) US4123699A (zh)
CA (1) CA1072380A (zh)
CH (1) CH612517A5 (zh)
DE (1) DE2715221C2 (zh)
GB (1) GB1518070A (zh)
IT (1) IT1079611B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002844C2 (de) * 1980-01-26 1982-08-26 Agfa-Gevaert Ag, 5090 Leverkusen Objetivwechsel-Einrichtung eines Mikrofilmlesegerätes
DE3437654A1 (de) * 1984-10-13 1986-04-17 MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG, 6352 Ober-Mörlen Verfahren zum projizieren von filmbildern sowie mikrofilm-lesegeraet zu seiner durchfuehrung
DE3642159A1 (de) * 1986-12-10 1988-06-23 Liesegang Fa Ed Handantrieb fuer mikrofilm-lesegeraet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130562A (en) * 1936-03-11 1938-09-20 Plant Liquidation Corp Selecting and indicating device
US3241440A (en) * 1963-12-26 1966-03-22 Bausch & Lomb Illumination system
US3809468A (en) * 1970-12-24 1974-05-07 Microform Data Syst Inc Film strip reader
DE2351580A1 (de) * 1973-10-13 1975-04-17 Agfa Gevaert Ag Mikrofilmlesegeraet

Also Published As

Publication number Publication date
DE2715221C2 (de) 1986-01-30
IT1079611B (it) 1985-05-13
US4123699A (en) 1978-10-31
CA1072380A (en) 1980-02-26
GB1518070A (en) 1978-07-19
DE2715221A1 (de) 1977-10-20

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Legal Events

Date Code Title Description
PL Patent ceased