B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
113/57
B21D 11/02 (2006.01) B21D 37/10 (2006.01) B29C 33/12 (2006.01) B29C 39/10 (2006.01)
Patent
CA 1279229
REINFORCED PLASTIC RETAINER RINGS FOR SHEET METAL FORMING Abstract of the Disclosure A reinforced plastic retainer ring for use in a sheet metal stretch forming process. The ring is reinforced with a plurality of metal brackets embedded in the rim portion generally radially aligned toward the center of the ring.
526087
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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