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发明名称
Feed mechanism
摘要
申请公布号
US1828552(A)
申请公布日期
1931.10.20
申请号
US19290355848
申请日期
1929.04.17
申请人
GENERAL MOTORS CORPORATION
发明人
WILLIAMS JAMES F.;CRAMER RAYMOND H.
分类号
B24B47/20
主分类号
B24B47/20
代理机构
代理人
主权项
地址
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