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Control panel for railway traffic controlling systems
US 3,056,121 A
Filed
: 05/19/1959
Issued
: 09/25/1962
Est. Priority Date
: 05/19/1959
Status: Expired due to Term
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Current Assignee
Carlton T. Jackson
Original Assignee
Carlton T. Jackson
Inventors
Jackson, Carlton T.
Application Number
US03/814,322
Time in Patent Office
1,225 Days
Field of Search
US Class Current
246/2.00R
CPC Class Codes
B61L 25/08
Diagrammatic displays
H02B 15/00
Supervisory desks or panels...
H02B 15/04
consisting of building blocks
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