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发明名称
Hole cutter for sheet material
摘要
申请公布号
US2379618(A)
申请公布日期
1945.07.03
申请号
US19440527507
申请日期
1944.03.21
申请人
ABRAMS JOHN M
发明人
ABRAMS JOHN M.
分类号
B67B7/46
主分类号
B67B7/46
代理机构
代理人
主权项
地址
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