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发明名称
Manufacture of built-up bellows
摘要
申请公布号
US2145376(A)
申请公布日期
1939.01.31
申请号
US19350002687
申请日期
1935.01.21
申请人
GENERAL MOTORS CORPORATION
发明人
SHIPPY LEO C.
分类号
B21C37/20
主分类号
B21C37/20
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代理人
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