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| Patents for G01P 13 - Indicating or recording presence or absence of movement; Indicating or recording of direction of movement (5,618) |
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| 08/17/1976 | US3974856 Distributor panel or board for compressed air monitoring systems | | 08/03/1976 | US3972231 Method for measuring velocity and direction of currents in a body of water | | 07/27/1976 | US3971251 Dynamically balanced apparatus for water borne instruments | | 07/13/1976 | US3969677 Frequency responsive polarity discriminator | | 06/29/1976 | US3967178 Wide band angular displacement and velocity sensor and method | | 06/15/1976 | US3963919 Motion responsive detector apparatus | | 06/01/1976 | US3960015 Well flow sensing apparatus | | 05/18/1976 | US3958092 Apparatus for discriminating between liquid and gaseous flow | | 05/18/1976 | US3956932 Wind sensor | | 04/13/1976 | US3950099 Two-axis image motion detector | | 03/16/1976 | US3944923 Device for sensing the direction of motion | | 03/09/1976 | US3943443 Speed detectors | | 03/02/1976 | US3941477 Measuring device for the measurement of fluid flow rates | | 03/02/1976 | US3940984 Means for controlling the displacement of a universally pivoted member | | 03/02/1976 | US3940983 Faraday effect fluid flow and direction indicator | | 02/10/1976 | US3937078 Sensing apparatus for inclinometers | | 01/27/1976 | US3935447 Angular motion detection apparatus | | 01/20/1976 | US3934129 Apparent wind direction indicator |
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