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发明名称
Open-die-heading machine
摘要
申请公布号
US1755312(A)
申请公布日期
1930.04.22
申请号
US19280289236
申请日期
1928.06.29
申请人
BRENNAN CHARLES T
发明人
BRENNAN CHARLES T.
分类号
B21K1/44
主分类号
B21K1/44
代理机构
代理人
主权项
地址
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