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发明名称
PNEUMATIC HAMMER
摘要
申请公布号
SU657171(A1)
申请公布日期
1979.04.15
申请号
SU19772485147
申请日期
1977.05.10
申请人
KH POLT I IM.V.I.LENINA
发明人
CHEKMASOV ANATOLIJ V,SU
分类号
E21C37/22;B25D9/00;(IPC1-7):E21C3/24
主分类号
E21C37/22
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代理人
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