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APPARATUS FOR COUNTING REVOLUTIONS WITHIN A PREDETERMINED SPEED RANGE
US 3,496,343 A
Filed
: 06/27/1966
Issued
: 02/17/1970
Est. Priority Date
: 06/27/1966
Status: Expired due to Term
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Current Assignee
Frederic R. Johanson
Original Assignee
Frederic R. Johanson
Inventors
Johanson, Frederic R.
Application Number
US04/560,776
Time in Patent Office
1,331 Days
Field of Search
US Class Current
377/15
CPC Class Codes
B28C 5/422
Controlling or measuring de...
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