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发明名称
Slagborr med hårdmetallskär och härför avsett hårdmetallskär
摘要
申请公布号
FI25957(A)
申请公布日期
1952.10.10
申请号
FID25957
申请日期
1950.09.12
申请人
HELLEFORS BRUKS AB
发明人
RUDQVIST SVEN
分类号
(IPC1-7):E21C13/08
主分类号
(IPC1-7):E21C13/08
代理机构
代理人
主权项
地址
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