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Very old recepticle patents
by wa2ise on 11/03/09 01:50 AM

Looks like the 1-15 plug and outlet was developed at least by 1914, a year before the 3 prong grounding plug was done, the Aussie style one I posted last week

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#190420 - 11/16/09 08:49 PM Re: Very old recepticle patents [Re: wa2ise]  
Collector  Offline
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Joined: Aug 2005
Posts: 8
Richmond, VA
Gaynor Receptacle This looks to be the single version of the duplex receptacle patent.


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