Title:
Process for the formation of recording blanks
United States Patent 1960025
Inventors:
Patterson, Everett M.
Shaw, Albert D.
Publication Date:
05/22/1934
Export Citation:
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
264/80, 427/224, 427/398.2
International Classes:
G11B3/00
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