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发明名称
Bail ear and method therefor
摘要
申请公布号
US1954430(A)
申请公布日期
1934.04.10
申请号
US19330649755
申请日期
1933.01.03
申请人
CARL T. WEBER
发明人
SMITH WILLIAM B.
分类号
B21F45/00
主分类号
B21F45/00
代理机构
代理人
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