| Patents for G01C 9 - Measuring inclination, e.g. by clinometers, by levels (8,378) |
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| 01/30/1991 | CN2070433U Falling gradient, height difference measuring rule |
| 01/29/1991 | CA1279473C Method and apparatus for measurement of caster, king- pin-inclination andcamber on motor vehicles |
| 01/24/1991 | WO1991000983A1 Safety tilt alarm |
| 01/16/1991 | EP0192719B1 Method and apparatus for determining at least one characteristic value of movement of a body |
| 01/15/1991 | US4984791 Green inclination level for golfers |
| 01/03/1991 | DE3920246A1 Liquid inclination sensor with electrical output signal - has container of liquid and gas with dielectric wall separating liquid from electrodes with differential impedance measuring circuit |
| 01/02/1991 | EP0405698A2 Acceleration sensor |
| 01/02/1991 | CN1011067B Batter measurer |
| 12/26/1990 | CN2068227U Pocket level |
| 12/25/1990 | US4979310 Composite level including an indexing system for aligning the frame with the cover plates |
| 12/20/1990 | DE3918865A1 Liquid level gauge incorporating laser device |
| 12/18/1990 | US4977680 Loft indicator and lie detector for golf club heads |
| 12/13/1990 | WO1990014928A1 Angle finding device |
| 12/12/1990 | EP0401815A1 Spirit level |
| 12/12/1990 | EP0401328A1 Method of measuring the angle of inclination of trench walls. |
| 12/11/1990 | US4976040 Post level apparatus |
| 11/28/1990 | CN2066571U Differential level |
| 11/27/1990 | US4972595 Inclination sensor |
| 11/22/1990 | EP0398150A2 Attitude sensing apparatus |
| 11/20/1990 | US4970796 Self supporting spirit level tool |
| 11/15/1990 | WO1990013792A1 Procedure and device for the detection of direction or angle |
| 11/15/1990 | WO1990013456A1 Control device for a passenger safety device for motor vehicles |
| 11/15/1990 | DE4005615A1 Alignment of model in dental articulator - by means of circular spirit level |
| 11/01/1990 | WO1990013005A1 Method and apparatus for monitoring relative angles |
| 10/31/1990 | EP0394310A1 Electronic tilt measuring system |
| 10/25/1990 | DE4008039A1 Spirit level with illuminated or luminous bubble lens - has luminous measurement liquid or integral light source and batteries for good legibility under all conditions |
| 10/23/1990 | US4964219 Combination plumb/level instrument for a try square |
| 10/18/1990 | WO1990012285A1 Improved spirit-level inclinometer |
| 10/18/1990 | DE3912444A1 Inclination angle measurement device - has two or more liquid capacitors, each with capacitance transducer |
| 10/17/1990 | CN2064043U Multifunction differential leveling instrument |
| 10/17/1990 | CN2064042U Vertical pendulum inclinometer |
| 10/04/1990 | WO1990011489A1 Electronic capacitive level with automatic electrode selection |
| 10/03/1990 | EP0389823A2 Arrangement for measuring displacements and deformations of constructions |
| 09/18/1990 | US4956922 Bubble inclination gauge including a central shield for light-emitting and light-detecting means |
| 09/13/1990 | DE3912500C1 Inclination sensor for vibrating underground mining machines - has two pendulum potentiometric sensors with liquids of different viscosities providing adjustable damping |
| 09/13/1990 | DE3907134A1 Device for determining the position of a tool arranged at the free end of the articulated boom |
| 09/12/1990 | EP0308413B1 Angular measurement device |
| 09/11/1990 | CA1273912A1 Level with illuminated bubble vials |
| 09/05/1990 | CN1045175A High-precision gradiometer for horizontal drilling |
| 08/22/1990 | CN2060874U Filling-in type measuring implement |
| 08/21/1990 | US4949467 Inclinometer including an apparatus for maintaining a scientific and measuring instrument or the like in a level plane |
| 08/16/1990 | DE3904464A1 Tilt indicator, in particular for camera, camcorder and the like |
| 08/16/1990 | DE3903685A1 Friction-free mounting of a rotatable part |
| 08/15/1990 | CN2060536U Magnetic multipurpose horizontal rule |
| 08/14/1990 | US4947692 Apparatus for detecting positional changes in relation to a vertical reference direction in buildings or in building subsoil |
| 08/14/1990 | US4947556 Plumber's level |
| 08/09/1990 | DE3902630A1 Angular resolver for inclinometers |
| 08/08/1990 | EP0381373A1 Orientation testing device |
| 07/31/1990 | US4944094 Picture frame leveling tool |
| 07/24/1990 | US4943158 Sensor controlled leveling device |
| 07/24/1990 | US4942668 Digital inclinometer |
| 07/03/1990 | US4938589 Sensor with integrated signal processing for one- to three-dimensional positioning |
| 06/28/1990 | WO1990007098A1 Method of measuring the angle of inclination of trench walls |
| 06/26/1990 | US4937518 Electrical inclination sensor and a monitoring circuit for the sensor |
| 06/12/1990 | US4932133 Post-avalanche aid device |
| 06/12/1990 | US4932132 Electronic level apparatus and method |
| 05/30/1990 | EP0370011A1 Spirit level |
| 05/30/1990 | CN2057746U Digital temperament apparatus for piano |
| 05/29/1990 | US4928395 Extensible level |
| 05/17/1990 | DE3838155A1 Spirit-level |
| 05/17/1990 | DE3838151A1 Balance |
| 05/15/1990 | US4925303 Aircraft piloting aid laser landing system |
| 05/15/1990 | US4924799 Inversion indicator |
| 05/10/1990 | DE3837565A1 Method for the deformational monitoring of a soil and/or a construction, and device suitable for carrying out the method |
| 05/08/1990 | US4922620 Device for determining the inclination of a plane with respect to theoretical horizontal plane |
| 05/03/1990 | DE3836794A1 Electronic inclinometer |
| 04/19/1990 | WO1990004152A1 Homopolar inductive displacement sensor |
| 04/18/1990 | EP0363577A1 Inclination angle sensor |
| 04/18/1990 | CN2056242U Multi-functional electronic level-meter |
| 04/18/1990 | CN2056241U Multi-purpose level-meter |
| 04/17/1990 | CA1267780A1 Polyfunctional spirit-level |
| 04/11/1990 | CN2055928U Hand-held level |
| 04/10/1990 | US4914823 Float biased level apparatus |
| 04/05/1990 | DE3905677A1 Sensor for automatically triggering vehicle occupant protection devices |
| 04/05/1990 | DE3832389A1 Sensor device for guiding the end phase of bodies of munitions |
| 04/03/1990 | US4912854 Cross vial liquid bubble illuminated level |
| 04/03/1990 | US4912851 Level/plumb indicator with tilt compensation |
| 03/29/1990 | DE3829204A1 Tilt meter and acceleration meter for vehicles |
| 03/27/1990 | US4912662 Inclinometer |
| 03/27/1990 | US4910876 For an elongated carpenter's level |
| 03/21/1990 | EP0359367A2 Acceleration sensor |
| 03/21/1990 | EP0358788A1 Electrolytic inclination sensor |
| 03/21/1990 | CN2054899U Electronic level ruler |
| 03/20/1990 | US4910459 Magnetic tile sensor with a non-magnetic case having a flange and a cover cold welded thereon |
| 03/20/1990 | US4908949 Air-bubble level for portable tools |
| 03/15/1990 | DE3830108A1 Inclination transmitter |
| 02/22/1990 | WO1990001678A1 Inclination detector |
| 02/22/1990 | WO1990001677A1 Inclination detector |
| 02/20/1990 | US4902129 Orientation indicator for a flexible fiberscope or endoscope including method of manufacture |
| 02/20/1990 | US4901443 Device for taking measurements for sewing |
| 02/08/1990 | DE3826810A1 Inclinometer, especially for gliders with and without plain flaps |
| 02/01/1990 | DE3735172A1 A digital spirit level with integrated distance meter with fully electronic measuring mechanism and LCD display for craftsmen and DIY enthusiasts |
| 01/23/1990 | US4894925 Extendable level |
| 01/11/1990 | WO1990000247A1 Inclination gauge |
| 01/10/1990 | EP0349730A2 Acceleration sensor for vehicles |
| 01/10/1990 | EP0349547A1 Inductive displacement sensors. |
| 01/04/1990 | DE3901910A1 Water (spirit) level having lightable (illuminatable) chills |
| 01/03/1990 | EP0349074A1 Inclination gauge |
| 01/03/1990 | CN2050588U Simple gravity vertical angle level-meter |
| 01/03/1990 | CN1038517A Batter measurer |