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Class Information
Number: 33/352
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Diverse directional indicator > Includes magnetic compass
Description: Device wherein one of the directional indicators is influenced by an external magnetic field (e.g., combined magnetic compasses and inclinometers).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7308766 |
Satellite antenna alignment device and method |
Dec. 18, 2007 |
| 7248983 |
Electronic compass and method of controlling an electronic compass using independent calibration and compass heading modules |
Jul. 24, 2007 |
| 7183997 |
Satellite dish location device |
Feb. 27, 2007 |
| 7173420 |
Magnetic detection device and method for manufacture |
Feb. 6, 2007 |
| 6885188 |
Detector assemblies and methods |
Apr. 26, 2005 |
| 6701631 |
Convertible directional azimuth and dip measuring modular compass and method |
Mar. 9, 2004 |
| 6647633 |
Low profile compass with removable protective cover and magnetic bull's eye alignment system |
Nov. 18, 2003 |
| 6357128 |
Low profile compass with removable protective cover and magnetic bull's eye alignment system |
Mar. 19, 2002 |
| 6141881 |
Electronic analogue compass |
Nov. 7, 2000 |
| 6094830 |
Inclination-compensating display device for a compass |
Aug. 1, 2000 |
| 5894674 |
Method and apparatus for determining direction |
Apr. 20, 1999 |
| 5828984 |
Data processing method for an electronic compass system |
Oct. 27, 1998 |
| 5697162 |
Arrangement serving to indicate the direction of a given geographic location |
Dec. 16, 1997 |
| 5566462 |
True magnetic compass |
Oct. 22, 1996 |
| 5461792 |
Navigation aid with biangulation |
Oct. 31, 1995 |
| 5388337 |
Angle orienting level apparatus |
Feb. 14, 1995 |
| 5381603 |
Reference pointer for a compass display |
Jan. 17, 1995 |
| 5339528 |
Transparency holder for navigation aid |
Aug. 23, 1994 |
| 5274928 |
Compass mounting apparatus |
Jan. 4, 1994 |
| 5274927 |
Compass apparatus |
Jan. 4, 1994 |
| 5187871 |
Underwater navigation device |
Feb. 23, 1993 |
| 4656750 |
Heading sensor |
Apr. 14, 1987 |
| 4495706 |
Alignment gage for dish antenna |
Jan. 29, 1985 |
| 4485825 |
Instrument for measuring positions and displacements of joints and spinal column (arthrospinometer) |
Dec. 4, 1984 |
| 4483080 |
Alignment detection system |
Nov. 20, 1984 |
| 4471534 |
Remote reading compass with 360 degree roll capability |
Sep. 18, 1984 |
| 4395829 |
Plumb measuring device |
Aug. 2, 1983 |
| 4359823 |
Gravity adjusted compass |
Nov. 23, 1982 |
| 4327498 |
Magnetic compass compensation system |
May. 4, 1982 |
| 4300390 |
Apparatus for determining positional coordinates utilizing the terrestrial magnetism as a directional reference |
Nov. 17, 1981 |
| 4288927 |
Terrestrial magnetism responsive method and device including a soft iron bar on a free end of a magnet |
Sep. 15, 1981 |
| 4217699 |
Terrestrial magnetism responsive device and method for using north or south seeking magnets in both north and south headings |
Aug. 19, 1980 |
| 4197655 |
Gyroscopic method and apparatus for determining magnetic heading and attitude |
Apr. 15, 1980 |
| 4157619 |
Inclination and direction responsive apparatus |
Jun. 12, 1979 |
| 4117602 |
Electromagnetic compass |
Oct. 3, 1978 |
| 4104803 |
Direction finding device and guidance system |
Aug. 8, 1978 |
| 4044473 |
Tilt detector and system |
Aug. 30, 1977 |
| 3956831 |
Attitude meter with rotatable arcuate scale |
May. 18, 1976 |
| 3950859 |
Angular displacement measuring apparatus |
Apr. 20, 1976 |
| 3936949 |
Static non-swinging course determining device on a vehicle |
Feb. 10, 1976 |
| 3937078 |
Sensing apparatus for inclinometers |
Feb. 10, 1976 |
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