Split ring coupling
作者： Clyde E Rickard
DOI:
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摘要:
lens.org 参考文章(5)
Stephen V Dillon, Gripping and coupling means ,(1938)
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Richard W Shoemaker, Coupling joint for tubes, etc. ,(1934)
Andersen Anders Frits Holger, Anordning ved rørkoblinger. ,(1951)