Indicator of direction of force traversing natural media > Magnetic field responsive > Error indicator, preventor, or compensator > Error-producting-field minimizing > Adjustable positioned permanent magnet > Patents

Browse by:

Browse by Category: Main > Information Technology

Class Information
Number: 33/358
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Magnetic field responsive > Error indicator, preventor, or compensator > Error-producting-field minimizing > Adjustable positioned permanent magnet
Description: Device wherein a permanent magnet is utilized to produce the opposing force.

Sub-classes under this class:

Class Number	Class Name	Patents
33/359	Pivoted adjustment	4

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7197343	Portable electronic apparatus with azimuth measuring function, magnetic sensor suitable for the apparatus, and azimuth measuring method for the apparatus	Mar. 27, 2007
6871412	Alignment tool and method for aligning large machinery	Mar. 29, 2005
5349529	Method of correcting magnetization vector	Sep. 20, 1994
4656751	Magnetic compass	Apr. 14, 1987
4058782	Method and apparatus for compensation of interference magnetic fields	Nov. 15, 1977