Hatch plugs
United States Patent 2970347

Inventors:
Massopust, Carl F.
Publication Date:
02/07/1961
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Assignee:
Gen, Transport AM.
Primary Class:
49/501
Other Classes:
52/784.140, 105/377.070, 49/401, 49/DIG.002
International Classes:
B61D19/00
US Patent References:
2682111Reproduction fixture
2753642Gun stock of expanded cellular plastic material
2794756Reinforced plastic article
2802766Method of manufacturing a laminated article
Foreign References:
GB720956A