Production of filaments, ribbons, and the like
United States Patent 2252689

Inventors:
Henry, Bradshaw William
Publication Date:
08/19/1941
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Assignee:
Pont DU.
Primary Class:
264/85
Other Classes:
65/32.500, 264/211.140, 425/815, 425/72.200
International Classes:
D01D5/08; D01F6/60; H01B13/12; H01B13/06