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发明名称
Broach
摘要
申请公布号
US2392172(A)
申请公布日期
1946.01.01
申请号
US19420451823
申请日期
1942.07.22
申请人
EX-CELL-O CORPORATION
发明人
MARKSTRUM JOHN A.
分类号
B23D43/02
主分类号
B23D43/02
代理机构
代理人
主权项
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