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经营范围
发明名称
Slotting machine
摘要
申请公布号
US2281774(A)
申请公布日期
1942.05.05
申请号
US19380240272
申请日期
1938.11.14
申请人
WIRTHSEN ASSOCIATES, INC.
发明人
LARSEN LOUIS G.
分类号
B23D1/08
主分类号
B23D1/08
代理机构
代理人
主权项
地址
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