Patents
Sitemap › G01 - Measuring; Testing › G01C - Measuring distances, levels or bearings; Surveying; Navigation; Gyroscopic instruments; Photogrammetry or videogrammetry › G01C 15 - Surveying instruments or accessories not provided for in groups
Patents for G01C 15 - Surveying instruments or accessories not provided for in groups (9,775)
09/1982
09/07/1982US4347739 Measuring equipment for the determination of terrestrial refraction
08/1982
08/31/1982US4346994 Secondary alignment target for an electro-optical alignment measuring system
08/24/1982US4345839 Device for controlling the position of a drift advancing machine
08/17/1982US4344231 Area mapping apparatus
08/11/1982EP0057626A2 Luminous target for optical threedimensional measuring techniques and measuring method
08/11/1982EP0057446A1 Surveying instrument having measuring mode selecting switch means
08/11/1982EP0020587B1 Method and device for checking the dimensions of vehicles
08/10/1982US4343550 Universally adjustable ranging target and retro-reflector housing bracket
07/1982
07/20/1982US4339880 Device for holding surveyor's instrument
07/20/1982CA1128195A1 Moving object inspection system
07/13/1982US4339665 Apparatus for detecting displacement of optical image
07/06/1982US4338031 Laser grade, elevation, curve surveying system
06/1982
06/29/1982US4337502 Light beam producing device
06/22/1982US4335522 Up, down or horizontal plumb bob
06/16/1982EP0053613A1 Method and apparatus for monitoring movement
06/16/1982EP0053606A1 An instrument for levelling and for laying-out right angles.
06/08/1982US4333242 Construction laser
05/1982
05/19/1982EP0051913A1 Remote control surveying
05/18/1982US4330212 Triaxis laser alignment system and method
05/18/1982US4329784 Method and device for checking the dimensions of vehicles
05/04/1982US4327501 Square adapter for level
03/1982
03/31/1982EP0048469A1 Method of drawing levelling marks
03/31/1982EP0048253A1 Device for setting inclination
03/30/1982US4321755 Plumb bob holder
03/23/1982US4321683 Measuring system for alignment and measurement with an electronic tachymeter
03/17/1982EP0047243A1 Method and apparatus for determining position.
03/16/1982US4319406 Laser targets for roller alignment
03/09/1982US4318228 Leveling pole
03/03/1982EP0046647A2 Digital measuring device
02/1982
02/23/1982US4316650 Sealed prism assembly
01/1982
01/19/1982US4311382 Universally adjustable ranging target and retro-reflector housing bracket
01/12/1982CA1115945A1 Moire interference alignment device provided with mirrors
12/1981
12/29/1981US4307939 Oscillating retroreflector
12/24/1981WO1981003698A1 Method and apparatus for monitoring movement
12/16/1981EP0041765A1 Method and apparatus for detecting optical signals under ambient light conditions
12/15/1981US4306193 Comparison circuit for alignment apparatus
12/15/1981US4305658 Moving object inspection system
11/1981
11/17/1981US4300290 Vertical sight adjuster
10/1981
10/27/1981US4297031 Apparatus and process for sweeping a flat optical light plane
10/20/1981US4295740 Photoelectric docking device
10/13/1981US4295201 Electronic distance-measuring instrument
10/06/1981US4293218 Reference light beam projector
10/01/1981WO1981002783A1 Device for setting inclination
09/1981
09/29/1981US4291982 Multi-purpose surveying instrument
09/22/1981US4290207 Surveying instrument
09/22/1981CA1109495A1 Method of controlling the working motion of a cutting tool of a tunnel-driving machine over the breast, and apparatus for carrying out the method
08/1981
08/18/1981US4283798 Attitude indicator for divers
08/06/1981WO1981002200A1 An instrument for levelling and for laying-out right angles
08/04/1981US4281928 Optical transit square with focusable crossing telescopes
08/04/1981US4281464 Device to facilitate the laying of masonry units
07/1981
07/28/1981US4280281 Remotely adjustable sighting device for tractors
07/21/1981US4280057 A surveying instrument having means for transmitting signals between an alidade and a fixed member
07/21/1981CA1105251A1 Surveyor's rod with orientable base member
07/07/1981US4277171 Base board device for measuring instruments
07/07/1981US4277169 Device for simultaneously performing alignment and sighting operations
06/1981
06/16/1981US4273225 Electrically operated mast for laser-controlled levelling system
06/09/1981US4271598 Surveying staffs
06/09/1981CA1102595A1 Reflective lens system
06/02/1981US4270721 Instrument support
05/1981
05/19/1981US4267637 Device for setting-up a baseball diamond
05/13/1981EP0028581A1 Arrangement for topographic measurements with an electronic tacheometer
05/12/1981US4266347 Holder for a plumb bob
04/1981
04/30/1981WO1981001195A1 Method and apparatus for determining position
04/14/1981US4261617 Method of controlling the working motion of a cutting tool of a tunnel-driving machine over the breast, and apparatus for carrying out the method
04/07/1981US4260254 Compact boresight tester for laser designators
03/1981
03/25/1981EP0025695A2 Instrument for measuring or marking out the distance of a point from a basic plane or line
03/10/1981US4254597 Sectionalized driven rod
02/1981
02/24/1981US4252439 Laser alignment apparatus
01/1981
01/27/1981US4247809 Electrical levelling system for laser beam
01/20/1981US4245912 Device such as an instrument for optically, preferably visually, determining a definite plane
01/13/1981US4244123 Guidance device for drain tile laying machine
01/07/1981EP0020603A1 Device for levelling-in
01/07/1981EP0020587A1 Method and device for checking the dimensions of vehicles.
01/06/1981US4243877 Electro-optical target for an optical alignment system
12/1980
12/30/1980CA1092651A1 Geodetic survey method
12/23/1980US4240208 Hand-held laser surveying rod
12/16/1980CA1091456A1 Guidance device for drain tile laying machine
11/1980
11/12/1980EP0018746A1 Boresight tester for laser designators
11/11/1980US4232965 Optical sighting device
11/11/1980US4232450 Football yardline locating device
11/04/1980US4231156 Guide line holder
10/1980
10/21/1980US4228588 Grade checker
10/01/1980EP0016297A1 Device for controlling the position of a tunnel boring machine
09/1980
09/17/1980EP0015654A1 Method for positional setting of constructional components of a ship's propulsion unit
09/17/1980EP0015575A1 Laser apparatus to align oblong structural members
09/09/1980US4221483 Laser beam level instrument
07/1980
07/29/1980US4215324 Spatial encoding of a laser beam by means of a Stark cell modulator
07/29/1980US4214373 Grade checker
06/1980
06/17/1980US4208097 Reflecting target for electronic distance measuring
06/10/1980US4206550 Point-to-point self-plumbing apparatus and method
06/10/1980CA1079062A1 Aeroplane drop marker
05/1980
05/29/1980WO1980001106A1 Device for levelling-in
05/27/1980CA1078173A1 Topographic bench mark member
05/20/1980US4203665 Aerial surveying method to determine ground contours
05/15/1980WO1980001003A1 Method and apparatus in tunnelling
05/15/1980WO1980001001A1 Method and device for checking the dimensions of vehicles
05/13/1980CA1077259A1 Boring rig alignment apparatus and method
04/1980
04/29/1980US4200787 Fiber optic elevation sensing apparatus
04/22/1980US4198759 Optical plummet azimuth reference assembly
04/08/1980CA1075342A1 Attitude indicator for divers
1 ... 87 88 89 90 91 92 93 94 95 96 97 98