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经营范围
发明名称
NON-RETURN VALVE
摘要
申请公布号
SU846904(A1)
申请公布日期
1981.07.15
申请号
SU19792839869
申请日期
1979.11.16
申请人
DN OTDEL VNII GORNOSPASATELNOGO DELA
发明人
KOVALCHUK VSEVOLOD I,SU;KOKHTOV EDUARD D,SU;MIROSHNICHENKO VISSARION KH,SU
分类号
F16K15/14;(IPC1-7):F16K15/14
主分类号
F16K15/14
代理机构
代理人
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地址
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