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经营范围
发明名称
Screw making machine
摘要
申请公布号
US2174968(A)
申请公布日期
1939.10.03
申请号
US19380234096
申请日期
1938.10.10
申请人
ECONOMY SCREW CORPORATION
发明人
CHERRY ANDREW J.;JASKOWIAK ANDREW J.
分类号
B21H3/06
主分类号
B21H3/06
代理机构
代理人
主权项
地址
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