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L Ulmer & Cie Ets
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L Ulmer & Cie Ets
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Publication of FR912892ApublicationCriticalpatent/FR912892A/fr
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D3/00—Control of position or direction
G05D3/12—Control of position or direction using feedback
G05D3/14—Control of position or direction using feedback using an analogue comparing device
G05D3/16—Control of position or direction using feedback using an analogue comparing device whose output amplitude can only take a number of discrete values
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FR912892D1945-03-071945-03-07Perfectionnements apportés aux dispositifs de commande électrique à distance
ExpiredFR912892A
(fr)