Coupling and seal for conduits
作者： Richard J Allyn
DOI:
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摘要:
lens.org 参考文章(4)
Jr Harold W Russell, Glass-to-metal tube coupling having indium seal means ,(1962)
William T Corsette, Swivel pipe fitting with bearing retainer ,(1954)
Clarence E Christophersen, Swivel joint having a resilient flange ,(1958)
Frank W Carlson, Pipe coupling or connection. ,(1903)