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发明名称
Shear
摘要
申请公布号
US2193148(A)
申请公布日期
1940.03.12
申请号
US19380198861
申请日期
1938.03.30
申请人
THOMAS GEORGE P
发明人
THOMAS GEORGE P.
分类号
B23D35/00
主分类号
B23D35/00
代理机构
代理人
主权项
地址
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