FR780221A - Improvement in winding devices, more particularly in film take-up reels - Google Patents

Improvement in winding devices, more particularly in film take-up reels

Info

Publication number
FR780221A
FR780221A FR780221DA FR780221A FR 780221 A FR780221 A FR 780221A FR 780221D A FR780221D A FR 780221DA FR 780221 A FR780221 A FR 780221A
Authority
FR
France
Prior art keywords
reels
improvement
film take
winding devices
winding
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
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR780221A publication Critical patent/FR780221A/en
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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR780221D 1933-11-11 1934-10-26 Improvement in winding devices, more particularly in film take-up reels Expired FR780221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US780221XA 1933-11-11 1933-11-11

Publications (1)

Publication Number Publication Date
FR780221A true FR780221A (en) 1935-04-20

Family

ID=22141437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR780221D Expired FR780221A (en) 1933-11-11 1934-10-26 Improvement in winding devices, more particularly in film take-up reels

Country Status (1)

Country Link
FR (1) FR780221A (en)

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