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US 3,043,517 A
Filed
: 07/06/1959
Issued
: 07/10/1962
Est. Priority Date
: 07/06/1959
Status: Expired due to Term
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2 Citations
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Current Assignee
Ralph Hanna
Original Assignee
Ralph Hanna
Inventors
RALPH HANNA
Application Number
US03/825,320
Time in Patent Office
1,100 Days
Field of Search
US Class Current
236/46.00R
CPC Class Codes
G05B 19/075
for delivering a step funct...
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