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发明名称
Improvements in or relating to drop-hammers
摘要
申请公布号
GB511123(A)
申请公布日期
1939.08.14
申请号
GB19380037422
申请日期
1938.12.23
申请人
HENSCHEL FLUGZEUG-WERKE A.G.
发明人
分类号
B21J7/44
主分类号
B21J7/44
代理机构
代理人
主权项
地址
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