CA1123808A - Cassette de film sonore a double rouleau avec un rouleau pour enlever la couche d'emulsion - Google Patents

Cassette de film sonore a double rouleau avec un rouleau pour enlever la couche d'emulsion

Info

Publication number
CA1123808A
CA1123808A CA336,844A CA336844A CA1123808A CA 1123808 A CA1123808 A CA 1123808A CA 336844 A CA336844 A CA 336844A CA 1123808 A CA1123808 A CA 1123808A
Authority
CA
Canada
Prior art keywords
film strip
web
stripping
cassette
film
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
CA336,844A
Other languages
English (en)
Inventor
Joseph A. Stella
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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
Priority claimed from US05/947,769 external-priority patent/US4170407A/en
Application filed by Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of CA1123808A publication Critical patent/CA1123808A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CA336,844A 1978-10-02 1979-10-02 Cassette de film sonore a double rouleau avec un rouleau pour enlever la couche d'emulsion Expired CA1123808A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US947,769 1978-10-02
US05/947,769 US4170407A (en) 1978-10-02 1978-10-02 Sound film cassette employing separating web
PCT/US1979/000761 WO1980000752A1 (fr) 1978-10-02 1979-09-24 Cassette de film sonore a double bande avec bandes de depouillage a emulsion
USPCT/US79/00761 1979-09-24

Publications (1)

Publication Number Publication Date
CA1123808A true CA1123808A (fr) 1982-05-18

Family

ID=26761401

Family Applications (1)

Application Number Title Priority Date Filing Date
CA336,844A Expired CA1123808A (fr) 1978-10-02 1979-10-02 Cassette de film sonore a double rouleau avec un rouleau pour enlever la couche d'emulsion

Country Status (2)

Country Link
CA (1) CA1123808A (fr)
DE (1) DE2953176A1 (fr)

Also Published As

Publication number Publication date
DE2953176A1 (de) 1980-12-11

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Legal Events

Date Code Title Description
MKEX Expiry