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发明名称
Improvements in or relating to mechanical hammers
摘要
申请公布号
GB764757(A)
申请公布日期
1957.01.02
申请号
GB19550008480
申请日期
1955.03.23
申请人
MAKOTO USUKI
发明人
分类号
E02D7/10
主分类号
E02D7/10
代理机构
代理人
主权项
地址
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