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MANUAL OPTICAL DIGITIZER
US 3,515,888 A
Filed
: 10/27/1967
Issued
: 06/02/1970
Est. Priority Date
: 10/27/1967
Status: Expired due to Term
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Current Assignee
Sanders Associates, INC.
(BAE Systems Plc)
Original Assignee
Edward V. Lewis
Inventors
Lewis, Edward V.
Application Number
US04/678,661
Time in Patent Office
949 Days
Field of Search
US Class Current
250/237.00R
CPC Class Codes
G01B 11/002
for measuring two or more c...
G01D 5/26
characterised by optical tr...
G06F 3/0317
in co-operation with a patt...
G06F 3/042
by opto-electronic means
G06F 3/0421
by interrupting or reflecti...
H03M 1/30
incremental
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