Filament forming method
United States Patent 2516930
US Patent References:
/1209247.html
- - 1209247

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- - 1921600

Filament making machine
- - 1947449

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Inventors:
Varian, Sigurd F.
Publication Date:
08/01/1950
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Assignee:
SPERRY CORP
Primary Class:
445/49
Other Classes:
216/108, 29/423, 313/342
International Classes:
H01J9/04
US Patent References:
2286759Method of making insulated wire of small or irregular cross-section
2425113Production of electric arc etching electrodes