Apparatus for making tubular bodies
United States Patent 2322902

Inventors:
Charles, Wappler Frederick
Publication Date:
06/29/1943
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Assignee:
Charles, Wappler Frederick
Primary Class:
72/340
Other Classes:
493/288, 72/402, 493/308, 29/422, 29/417, 29/414, 600/8, 29/34R
International Classes:
A61K51/12; A61N5/10; B21D51/00; G21G4/06; G21G4/00