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1947-06-10
Object locating system
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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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1946-09-10
Course beacon
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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
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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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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
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1946-08-06
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1975-10-28
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1967-12-05
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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
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1969-12-02
Precision shaft encoder having means to eliminate the effect of translational movement