Title:
Resistance material
Document Type and Number:
United States Patent 2258646
Inventors:
Grisdale, Richard O.
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Publication Date:
10/14/1941
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Referenced by:
Export Citation:
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
501/1, 313/118, 501/126, 313/130, 313/131R
International Classes:
H01C7/04