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发明名称
Mechanical hammer
摘要
申请公布号
US2845900(A)
申请公布日期
1958.08.05
申请号
US19550485485
申请日期
1955.02.01
申请人
MAKOTO USUKI
发明人
USUKI MAKOTO
分类号
B21J7/24;E02D7/10
主分类号
B21J7/24
代理机构
代理人
主权项
地址
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