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发明名称
Apparatus for producing spring units
摘要
申请公布号
US3012590(A)
申请公布日期
1961.12.12
申请号
US19570693422
申请日期
1957.10.30
申请人
HODGES JR FREDERICK G;SMITH CLARENCE J
发明人
JR. FREDERICK G. HODGES,;SMITH CLARENCE J.
分类号
B21F33/04
主分类号
B21F33/04
代理机构
代理人
主权项
地址
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