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经营范围
发明名称
Locking ring rolling machine
摘要
申请公布号
US2940501(A)
申请公布日期
1960.06.14
申请号
US19570697590
申请日期
1957.11.20
申请人
KRADOSKA EDWARD C
发明人
KRADOSKA EDWARD C.
分类号
B21H1/04
主分类号
B21H1/04
代理机构
代理人
主权项
地址
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