| Patents for G01C 15 - Surveying instruments or accessories not provided for in groups (9,775) |
|---|
| 11/21/1991 | EP0456819A1 Device for photogrammetrically surveying an object. |
| 11/20/1991 | CN2089162U Staff gage for steel belt |
| 11/19/1991 | CA1292118C Self leveling transmitter for laser alignment systems |
| 11/07/1991 | DE4013982A1 Building foundation deformation monitoring arrangement - has buoyancy pendulum with float sensor in liquid in bore hole in building foundations or structure |
| 11/05/1991 | US5062753 Survey nail |
| 10/29/1991 | US5062087 Hand held electronic grading level |
| 10/23/1991 | EP0452975A2 A receiver for a laser alignment system with modulated field |
| 10/23/1991 | EP0452974A2 Laser alignement system with modulated field |
| 10/22/1991 | CA1291252C Method and system for determining position on a moving platform, such as a ship, using signals from gps satellites |
| 10/17/1991 | WO1991015732A1 Real time three dimensional sensing system |
| 10/15/1991 | US5056454 Utility locator |
| 10/08/1991 | US5055666 Surveying apparatus detecting relative angular position of projector and range finder |
| 10/08/1991 | US5054917 Automatic boresighting device for an optronic system |
| 10/06/1991 | WO1991015924A1 Computer assisted video surveying and method therefor |
| 10/02/1991 | EP0449581A1 Shield tunnelling apparatus |
| 10/01/1991 | US5052114 Golfers optical alignment instrument |
| 09/24/1991 | US5051934 Ancillary arrangement for inclusion in a distance measuring instrument |
| 09/19/1991 | WO1991014079A1 System for detecting position of underground excavator and magnetic field producing cable |
| 09/18/1991 | EP0446360A1 Position detecting device for underground excavator |
| 09/17/1991 | US5049757 Method for scanning a plurality of optical measuring reflectors and an apparatus for performing the method |
| 09/17/1991 | US5049735 Apparatus for detecting light receiving position |
| 09/11/1991 | EP0370060A4 Optical instrument |
| 09/10/1991 | US5046259 Underwater measuring systems and methods |
| 09/05/1991 | WO1991013320A1 Plumb indicator |
| 09/05/1991 | WO1991013319A1 Laser detector system |
| 09/04/1991 | CN2084190U Superelevation plumbing device for measuring distance |
| 09/03/1991 | US5044744 Method and apparatus for distance measurement using electromagnetic waves |
| 09/03/1991 | US5044634 Golf information system |
| 08/28/1991 | EP0443288A1 Improved apparatus for orientation and guidance of machines |
| 08/22/1991 | WO1991012482A1 Combined laser position detector, infrared emissivity target and tv emissivity target |
| 08/21/1991 | EP0442193A2 Projection of two orthogonal reference light planes |
| 08/21/1991 | EP0442112A2 Method and apparatus of photodetection |
| 08/20/1991 | US5040892 Method and apparatus for determining the direction to a laser beam source |
| 08/14/1991 | EP0440956A2 Method and apparatus of photodetection |
| 08/13/1991 | US5038493 Elevation and plumb position determining device |
| 08/08/1991 | WO1991011559A1 Method, device and spacer plug for indication of a surface above a base |
| 07/30/1991 | US5036206 Combined laser position detector, infrared emissivity target and TV target |
| 07/30/1991 | US5035060 Method of mapping underground mines |
| 07/23/1991 | US5033848 Pendulous compensator for light beam projector |
| 07/23/1991 | US5033847 Angular positioning and calibration of projected reference light planes |
| 07/16/1991 | US5032014 Datum beam projecting apparatus for use with surveying equipment |
| 07/16/1991 | US5031328 Illuminated optical tooling target |
| 07/13/1991 | CA2032910A1 Sophisticated directing and guiding device for earthmovers |
| 07/09/1991 | US5031103 Position detector for moving vehicle |
| 07/09/1991 | US5030840 Analog laser receiver for determining the position of incidence of a beam of laser light thereon |
| 07/09/1991 | CA1285756C Three dimensional laser beam survey system |
| 07/02/1991 | US5027521 Surveying apparatus |
| 06/27/1991 | WO1991009273A1 Device for photogrammetrically surveying an object |
| 06/25/1991 | US5026157 Magnetic motion damping system for pendulous compensator |
| 06/19/1991 | CN1052370A Method and apparatus for measuring coordinates of surveyed point |
| 06/06/1991 | DE4037273A1 Arrangement for object photogrammetric measurement - has sensors and camera with positioning no adversely affected by reference pattern image formation |
| 05/29/1991 | EP0429012A2 Laser beam controller for surveying equipment |
| 05/29/1991 | EP0428952A1 Accelerometer |
| 05/08/1991 | EP0426287A1 Improved detection and display device |
| 05/08/1991 | CN1051220A Reference system for railway track machines |
| 05/07/1991 | US5014204 System for detecting position of moving vehicle and system for detecting reference points therefor |
| 05/07/1991 | US5014066 System for simultaneously deriving position information from a plurality of satellite transmissions |
| 05/07/1991 | US5012585 Laser plumb-bob apparatus |
| 05/02/1991 | EP0424811A1 Reference system for railway track working machines |
| 04/24/1991 | EP0423162A1 Surveying system with an electro-optical total station and a mobile receiver station of a satellite positioning system. |
| 04/03/1991 | EP0419602A1 Method and apparatus for determining movements in structures |
| 03/27/1991 | EP0419320A1 Automatic harmonizing device for an opto-electronic system |
| 03/21/1991 | WO1991003708A1 Position detecting device for underground excavator |
| 03/19/1991 | US5000564 Laser beam measurement system |
| 03/05/1991 | US4997283 Vehicle straightener measuring unit, measuring apparatus reliant on reflected beams, and source, targets and method |
| 02/26/1991 | US4996547 Radial arm strike rail |
| 02/21/1991 | WO1991002217A1 Angular straightedge |
| 02/19/1991 | US4993161 Laser beam level instrument |
| 02/19/1991 | US4993160 Pipe alignment device and method |
| 01/30/1991 | EP0250581B1 Self-aligning phase conjugate laser |
| 01/29/1991 | US4988193 Method and apparatus for measuring incident light angle relative to level |
| 01/29/1991 | US4988192 Laser theodolite |
| 01/22/1991 | CA1279402C Method and tooling for aligning equipement on board a carrier vehicle, more particularly on board an airplane |
| 01/15/1991 | US4985847 For a vehicle |
| 01/10/1991 | WO1991000497A1 Device for measuring position of underground excavator |
| 12/27/1990 | EP0403585A1 Surveying instrument with receiver for a satellite position measurement system and process for operating it. |
| 12/25/1990 | US4979462 Systems and methods for indicating the location of various structural members in concrete members |
| 12/20/1990 | DE3918865A1 Liquid level gauge incorporating laser device |
| 12/12/1990 | EP0401815A1 Spirit level |
| 12/12/1990 | CN2067395U Meter for measuring vertical bank of wheel |
| 12/11/1990 | US4976538 Detection and display device |
| 12/11/1990 | US4976041 Base-point anchor |
| 12/04/1990 | CA1277386C Self-contained laser-activated depth sensor for excavator |
| 11/29/1990 | WO1990014576A1 Levelling bar |
| 11/28/1990 | CN2066572U Luminous plumb ball |
| 11/27/1990 | US4973158 Rotating laser beam reference plane instrument |
| 11/27/1990 | US4972591 For use with an electronic distance measurement instrument in land surveying |
| 11/27/1990 | CA1277043C Apparatus storing a representation of topological structures and methods of building and searching the representation |
| 11/20/1990 | US4971440 Projection of two orthogonal reference light planes |
| 11/20/1990 | US4970795 Surveyor's marker |
| 11/20/1990 | US4970794 Prism and sighting target assembly |
| 11/15/1990 | DE4006939A1 Measurement of azimuth for tachometry - using tachometer and navigation satellite system with reflector at measurement point for reduced equipment costs and measurement time |
| 11/01/1990 | WO1990013002A1 Device for defining a horizontal plane |
| 10/31/1990 | EP0395614A1 Method and arrangement for determining the direction to a laser beam source |
| 10/23/1990 | US4964218 Optical or laser ball target assemblies for precision location measurements |
| 10/18/1990 | WO1990012284A1 An arrangement for performing position determination |
| 10/18/1990 | WO1990012282A1 An arrangement for establishing or defining the position of a measuring point |
| 10/03/1990 | EP0389823A2 Arrangement for measuring displacements and deformations of constructions |
| 09/26/1990 | EP0388855A1 Instrument with an adjusting marker |
| 09/26/1990 | EP0388559A2 Method and apparatus for measuring incident light angle relative to a reference |