|
US3208274A
|
|
Apparatus for measuring angular displacement of a rotatable member by electronic means
|
|
US2966635A
|
|
Ultra-high frequency oscillator with resonant cavity tuning means
|
|
US2872673A
|
|
Radar signal simulator
|
|
US2922157A
|
|
Radar signal simulator
|
|
US2533998A
|
|
Ship's log
|
|
US2486029A
|
|
Electric motor follow-up apparatus
|
|
US2629259A
|
|
Square law force measuring device
|
|
US2487310A
|
|
Square root extracting device
|
|
US2441618A
|
|
Shaft seal
|
|
US2469114A
|
|
Shaft seal
|
|
GB568239A
|
|
Improvements in or relating to indicating systems
|
|
US2441632A
|
|
Reversible motor control system
|
|
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|
|
Ship's speed indicator
|
|
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|
|
Fore-and-aft draft indicator
|
|
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|
|
Rotary centrifugal pressure producing device
|
|
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|
|
Draft gauge for ships
|
|
US2269068A
|
|
Travel indicator for ships
|
|
US2101165A
|
|
Pitot tube
|
|
GB430516A
|
|
Improvements in apparatus for determining positions of vessels on the earth
|
|
US2089878A
|
|
Ship's indicating system
|
