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经营范围
发明名称
Rotary percussive tool
摘要
申请公布号
GB2038674(A)
申请公布日期
1980.07.30
申请号
GB19790043745
申请日期
1979.12.19
申请人
VNI PK I MEKH;VNIISMI
发明人
分类号
E21B6/04;B23B45/00;B23B45/16;B25D16/00;F16D7/02;(IPC1-7):B23B45/16;B23B47/02
主分类号
E21B6/04
代理机构
代理人
主权项
地址
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