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经营范围
发明名称
METHOD OF REDUCING AIR PERMEABILITY OF ABOVE-MINE BUILDING
摘要
申请公布号
SU1145154(A1)
申请公布日期
1985.03.15
申请号
SU19833563172
申请日期
1983.03.15
申请人
KOGON VLADIMIR R,SU
发明人
KOGON VLADIMIR R,SU
分类号
E21F1/00;(IPC1-7):E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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