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http://www.google.ca/patents/US548789?utm_source=gb-gplus-share
Patent US548789 - DISTRIBUTION SYSTEM FOR ALTERNATING CURRENTS
DISTRIBUTION SYSTEM FOR ALTERNATING CURRENTS
ALVA L. SEARLES et al
› Overview
Abstract
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Description
Claims
Patent number
: 548789
Filing date
: 18 Apr 1895
Issue date
: 29 Oct 1895
Inventors
:
ALVA L. SEARLES
,
ALVA L. SEARLES
Current U.S. Classification
:
307/52
;
307/83
;
307/86
;
307/113
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US4160917
4 Jan 1978
10 Jul 1979
Energy conserving transformer power supply system
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