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发明名称
PIPE SEAL
摘要
申请公布号
GB8403596(D0)
申请公布日期
1984.03.14
申请号
GB19840003596
申请日期
1984.02.10
申请人
ALH SYSTEMS LTD
发明人
分类号
F16L21/02;F16L55/164;F16L55/175
主分类号
F16L21/02
代理机构
代理人
主权项
地址
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