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经营范围
发明名称
PIPE JOINT
摘要
申请公布号
SU1610185(A1)
申请公布日期
1990.11.30
申请号
SU19884422426
申请日期
1988.05.11
申请人
DO POLT INSTITUT
发明人
MALASHKINA VALENTINA A,SU;KRAVCHENKO ALBERT L,SU
分类号
F16L23/00
主分类号
F16L23/00
代理机构
代理人
主权项
地址
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