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发明名称
Collet
摘要
申请公布号
US2415482(A)
申请公布日期
1947.02.11
申请号
US19440525834
申请日期
1944.03.10
申请人
GENERAL MOTORS CORPORATION
发明人
GREENOUGH JOHN H.
分类号
B23B31/20
主分类号
B23B31/20
代理机构
代理人
主权项
地址
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