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发明名称
Cross feeding mechanism for grinding machines
摘要
申请公布号
US1929214(A)
申请公布日期
1933.10.03
申请号
US19300485472
申请日期
1930.09.30
申请人
GREENFIELD TAP & DIE CORPORATION
发明人
PLANTINGA PETER
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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