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发明名称
Tool
摘要
申请公布号
US1897700(A)
申请公布日期
1933.02.14
申请号
US19310574184
申请日期
1931.11.10
申请人
JONES CLARENCE O
发明人
JONES CLARENCE O.
分类号
B21F15/00
主分类号
B21F15/00
代理机构
代理人
主权项
地址
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