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Photographic product
US 2,978,971 A
Filed
: 02/18/1960
Issued
: 04/11/1961
Est. Priority Date
: 02/18/1960
Status: Expired due to Term
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Current Assignee
William H. Jr. Eburn
Original Assignee
William H. Jr. Eburn
Inventors
Eburn, William H. Jr.
Application Number
US04/009,476
Time in Patent Office
418 Days
Field of Search
US Class Current
396/518
CPC Class Codes
G03B 17/32
Locating plates or cut films
G03B 17/34
Changing plates or cut films
G03C 8/42
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