Sealing band for film spools
United States Patent 3195722

Inventors:
Hubert, Duden Emanuel
Publication Date:
07/20/1965
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Assignee:
GEVAERT PHOTO PROD NV
Primary Class:
206/53
Other Classes:
206/400
International Classes:
G03B21/32
Foreign References:
DE632170C
GB696002A
GB873882A