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Re: Steinmetz Patents
Original poster: "robert heidlebaugh" <rheidlebaugh-at-desertgate-dot-com>
The automatic phase shifting apparatus is unique, but the others are
redundant to Tesla's patents.
Robert H
--
> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Mon, 15 Nov 2004 16:03:14 -0700
> To: tesla-at-pupman-dot-com
> Subject: Steinmetz Patents
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Mon, 15 Nov 2004 16:05:49 -0700
>
> Original poster: "Day, Michael" <Michael.Day-at-USPTO.GOV>
>
> Greetings,
>
> A few of Charles Steinmetz US patents:
>
> US 1698283 A Mechanical rectifier
> US 1658746 A Lightning arrester
> US 1583622 A Automatic phase-shifting apparatus
> US 2399367 A Series capacitor protection
> US 1025932 A Means for producing light
>
>