Die for making metal foil lids
United States Patent 3147721
US Patent References:
Apparatus for forming sheet metal caps
- - 1884708

/2899922.html
- - 2899922

Apparatus for forming receptacles
- - 2968270


Inventors:
Holmes, Walter S.
Publication Date:
09/08/1964
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Assignee:
REYNOLDS METALS CO
Primary Class:
72/348
Other Classes:
72/351
International Classes:
B21D51/44; B21D51/38