Slit identification chi-ray cassette having a pair of removable lips disposed within the cassette
United States Patent 3296437
Inventors:
Isadore, Meschan
Publication Date:
01/03/1967
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Assignee:
Rachel, Meschan M. F.
Primary Class:
Other Classes:
378/185
International Classes:
G03B42/04
Foreign References:
| DE1128282B |