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Velocity selector using light conducting rods and a plurality of light beam interrupters
US 3,398,288 A
Filed
: 02/16/1965
Issued
: 08/20/1968
Est. Priority Date
: 02/16/1965
Status: Expired due to Term
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Current Assignee
Elvin W. Melton
,
Warren M. Sanders
Original Assignee
Elvin W. Melton
,
Warren M. Sanders
Inventors
Sanders, Warren M.
,
Melton, Elvin W.
Application Number
US04/433,237
Time in Patent Office
1,281 Days
Field of Search
US Class Current
250/222.1
CPC Class Codes
B61L 25/021
Measuring and recording of ...
G01P 15/16
by evaluating the time-deri...
G01P 3/68
using optical means, i.e. u...
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