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发明名称
Cut-off mechanism for heading machines
摘要
申请公布号
US1989398(A)
申请公布日期
1935.01.29
申请号
US19340736019
申请日期
1934.07.19
申请人
BRENNAN CHARLES T
发明人
BRENNAN CHARLES T.
分类号
B21K27/06
主分类号
B21K27/06
代理机构
代理人
主权项
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