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发明名称
Thread forming apparatus
摘要
申请公布号
US2858720(A)
申请公布日期
1958.11.04
申请号
US19540474463
申请日期
1954.12.10
申请人
DUDA WILLIAM J
发明人
DUDA WILLIAM J.
分类号
B21H3/04
主分类号
B21H3/04
代理机构
代理人
主权项
地址
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