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发明名称
Power operated hammers
摘要
申请公布号
US2942503(A)
申请公布日期
1960.06.28
申请号
US19570637427
申请日期
1957.01.31
申请人
PNEUMATIC DROP HAMMER COMPANY
发明人
FITZGERALD REGINALD P.
分类号
B21J7/36
主分类号
B21J7/36
代理机构
代理人
主权项
地址
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