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1971-09-14
Radiant energy inspection system for rotating objects
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1966-08-09
Capacitive resolver
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1966-12-13
Attitude sensing apparatus
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1967-06-27
Dual beam optical gyroscope pickoff
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1939-08-29
Navigational system
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1952-01-08
Navigation computer and piloting system
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1962-03-13
Positioning determining device
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1947-02-25
High-frequency phase measuring apparatus
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2009-08-27
Фазовый способ пеленгации и фазовый пеленгатор для его осуществления
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1970-01-13
Direction finder
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1980-04-08
Radio navigation system
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1967-01-25
Improvements in or relating to the inspection of surfaces
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1975-06-24
Photosensitive tracker including means for producing an output in accordance with a plurality of radiation characteristics
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1954-09-07
Vector calculator
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1974-03-15
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1955-02-08
Resistance type of phase shifter
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1989-07-18
Rotational-position detecting apparatus with two shaped photovoltaic surfaces
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1964-04-21
Apparatus for determining the direction of arrival of wave energy
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1946-08-06
Phase type direct indicating direction finder
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1975-10-28
Electronic direction finding apparatus
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1955-02-15
Sound wave direction finding system
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1967-12-05
Test standard device for discrete angle values
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1966-04-12
Direction finder antenna apparatus
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1983-12-06
Magnetic heading reference
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1949-07-26
Radio direction finder