FR2090681A5 - - Google Patents

Info

Publication number
FR2090681A5
FR2090681A5 FR7114671A FR7114671A FR2090681A5 FR 2090681 A5 FR2090681 A5 FR 2090681A5 FR 7114671 A FR7114671 A FR 7114671A FR 7114671 A FR7114671 A FR 7114671A FR 2090681 A5 FR2090681 A5 FR 2090681A5
Authority
FR
France
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
FR7114671A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of FR2090681A5 publication Critical patent/FR2090681A5/fr
Expired legal-status Critical Current

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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6271—Holders for the original in enlargers
    • G03B27/6285—Handling strips
    • 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
    • G03B21/113—Handling roll films

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Replacement Of Web Rolls (AREA)
  • Projection-Type Copiers In General (AREA)
  • Unwinding Webs (AREA)
FR7114671A 1970-04-24 1971-04-23 Expired FR2090681A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3168370A 1970-04-24 1970-04-24

Publications (1)

Publication Number Publication Date
FR2090681A5 true FR2090681A5 (fr) 1972-01-14

Family

ID=21860842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7114671A Expired FR2090681A5 (fr) 1970-04-24 1971-04-23

Country Status (6)

Country Link
US (1) US3630469A (fr)
CA (1) CA946812A (fr)
CH (1) CH540179A (fr)
DE (1) DE2119986A1 (fr)
FR (1) FR2090681A5 (fr)
GB (1) GB1349472A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106725A (en) * 1976-12-16 1978-08-15 Oskar Hubert Richt Drive unit for magnetic tape-recorders
CH619398A5 (fr) * 1977-04-14 1980-09-30 Bobst Fils Sa J
US4709869A (en) * 1986-04-14 1987-12-01 Candler Darrell E Film storage system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126161A (en) * 1964-03-24 Self-threading device
US2615641A (en) * 1950-08-29 1952-10-28 John Reginald Bryans Magnetic tape sound recording and reproducing apparatus
US3498571A (en) * 1968-08-13 1970-03-03 Interface Mechanisms Tape reel drive system

Also Published As

Publication number Publication date
DE2119986A1 (de) 1971-11-04
CH540179A (de) 1973-08-15
GB1349472A (en) 1974-04-03
US3630469A (en) 1971-12-28
CA946812A (en) 1974-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse