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STATIC TRANSFER SWITCHING SYSTEM
US 3,509,357 A
Filed
: 05/10/1967
Issued
: 04/28/1970
Est. Priority Date
: 05/10/1967
Status: Expired due to Term
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Current Assignee
George H. Studtmann
Original Assignee
George H. Studtmann
Inventors
Studtmann, George H.
Application Number
US04/637,444
Time in Patent Office
1,084 Days
Field of Search
US Class Current
307/64
CPC Class Codes
H02H 3/36
involving comparison of the...
H02J 9/06
with automatic change-over ...
H03K 17/72
having more than two PN jun...
H03K 17/725
for ac voltages or currents...
Y02B 70/30
Systems integrating technol...
Y04S 20/20
End-user application contro...
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