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Method and apparatus for digitally measuring distance
US 3,412,400 A
Filed
: 08/24/1966
Issued
: 11/19/1968
Est. Priority Date
: 08/24/1966
Status: Expired due to Term
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Current Assignee
John L. Aker
Original Assignee
John L. Aker
Inventors
Aker, John L.
Application Number
US04/574,701
Time in Patent Office
818 Days
Field of Search
US Class Current
342/48
CPC Class Codes
G01S 13/787
co-operating with direction...
H03H 11/1213
using transistor amplifiers...
H03H 11/1295
Parallel-T filters
H03K 23/002
using semiconductor devices...
H03K 3/284
monostable
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