Double Ferrule Patent
Does anybody know which company originally patented the double ferrule design currently used in A-Lok, Swagelok, Hy-Lok fittings? I've been doing some research but am having a hard time searching through all of these patent databases, so if anybody could link it, it'd be much appreciated.
edit: Actually, if you have any knowledge about any patents regarding double ferrule design, I'd appreciate it.
Submitted July 07, 2017 at 09:46AM by Kote7
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