FR735999A - Method and apparatus for comparing photographic recordings - Google Patents

Method and apparatus for comparing photographic recordings

Info

Publication number
FR735999A
FR735999A FR735999DA FR735999A FR 735999 A FR735999 A FR 735999A FR 735999D A FR735999D A FR 735999DA FR 735999 A FR735999 A FR 735999A
Authority
FR
France
Prior art keywords
photographic recordings
comparing photographic
comparing
recordings
photographic
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR735999A publication Critical patent/FR735999A/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
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR735999D 1931-04-28 1932-04-27 Method and apparatus for comparing photographic recordings Expired FR735999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US735999XA 1931-04-28 1931-04-28

Publications (1)

Publication Number Publication Date
FR735999A true FR735999A (en) 1932-11-17

Family

ID=22114665

Family Applications (1)

Application Number Title Priority Date Filing Date
FR735999D Expired FR735999A (en) 1931-04-28 1932-04-27 Method and apparatus for comparing photographic recordings

Country Status (1)

Country Link
FR (1) FR735999A (en)

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