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发明名称
Flexible pipe coupling for beaded conduits having a plurality of pivotal back-up elements
摘要
申请公布号
US2956820(A)
申请公布日期
1960.10.18
申请号
US19570669013
申请日期
1957.07.01
申请人
ON MARK COUPLINGS, INC.
发明人
CENZO HERBERT A. DE
分类号
F16L19/028;F16L27/113;F16L27/12
主分类号
F16L19/028
代理机构
代理人
主权项
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