|
US1661096A
(en)
|
|
Mathematical instrument
|
|
CN102679946A
(zh)
|
|
光瞄系统空间方位角标定方法
|
|
US4138826A
(en)
|
|
Device for locating celestial bodies
|
|
SU69661A1
(enrdf_load_stackoverflow)
|
|
|
|
US3918172A
(en)
|
|
Method and apparatus for determining geodesic measurements by helicopter
|
|
US2570458A
(en)
|
|
Surveying target
|
|
US2405113A
(en)
|
|
Rhumb line calculator or distance and course computer
|
|
US2064062A
(en)
|
|
Navigating instrument
|
|
US2813338A
(en)
|
|
Navigators plotting board
|
|
US2190977A
(en)
|
|
Drift indicator
|
|
US2476625A
(en)
|
|
Sighting apparatus for ascertaining the velocity and direction of movement of aerial targets
|
|
US1949422A
(en)
|
|
Plotting device
|
|
Agocs
|
|
Computation charts for linear increase of velocity with depth |
|
US2299744A
(en)
|
|
Direct reading computer
|
|
SU512370A1
(ru)
|
|
Высотомер двойного изображени
|
|
US1879116A
(en)
|
|
Calculating goniometer
|
|
US1569190A
(en)
|
|
Fire-control apparatus
|
|
US3706496A
(en)
|
|
Cinetheodolite
|
|
SU79221A1
(ru)
|
|
Оптический дальномер
|
|
SU2909A1
(ru)
|
|
Прибор дл определени скорости и направлени ветра, курса и скорости полета аэроплана, а также угла сноса аэроплана
|
|
US387633A
(en)
|
|
Distance-instrument |
|
US2064061A
(en)
|
|
Position finder
|
|
US1339130A
(en)
|
|
Apparatus for determining the elevation and distance of an aerial mark from a battery
|
|
Comstock et al.
|
|
Handbook of Data Reduction Methods |
|
SU43753A1
(ru)
|
|
Прибор дл определени положени облаков
|