Title:
Lamp filament and method of manufacture thereof
United States Patent 2067746
Inventors:
Zabel, Rolland M.
Publication Date:
01/12/1937
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Export Citation:
Assignee:
HYGRADE SYLVANIA CORP
Primary Class:
Other Classes:
148/668, 216/16, 216/13, 72/135, 29/423, 72/128, 445/48
International Classes:
H01K3/02; H01K3/00