Optics: measuring and testing – Angle measuring or angular axial alignment – Apex of angle at observing or detecting station
Patent
1974-08-27
1976-10-12
McGraw, Vincent P.
Optics: measuring and testing
Angle measuring or angular axial alignment
Apex of angle at observing or detecting station
178DIG36, 356255, G01C 100, G02B 2732
Patent
active
039854469
ABSTRACT:
A device to provide a ship's navigator with information day and night, as to the altitude of celestial bodies on a CRT display with digital display of the altitude and time on the CRT and/or LED read-out.
REFERENCES:
patent: 3752591 (1973-08-01), Feldman
patent: 3780221 (1973-12-01), Narbaits-Jaureguy
"Day-Night . . . LLLTV . . . Celestral Navigation", Feldman et al; Navigan; pp. 116-125; vol. 20 No. 2 summer 1973.
Barton George G.
Feldman Sidney
Branning A. L.
Bushnell R. E.
McGraw Vincent P.
Sciascia R. S.
The United States of America as represented by the Secretary of
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