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Class Information
Number:
33/359
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
> Pivoted adjustment
Description:
Device wherein the permanent magnet is supported for pivotal or swinging movement.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
5995913
Method of stabilizing the horizon of magnetic compasses
Nov. 30, 1999
5701259
Method for stabilizing the directional display of magnetic compasses
Dec. 23, 1997
5339529
Magnetic sensor mount
Aug. 23, 1994
5233759
Compensating magnetic compass
Aug. 10, 1993
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