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Class Information
Number:
33/317R
Name:
Geometrical instruments
>
Indicator of direction of force traversing natural media
>
Gyromagnetic compass
> Electrical telemetering
Description:
Sub-classes under this class:
Class Number
Class Name
Patents
33/317D
Differential disparity correction
4
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4577414
Remotely readable fiber optic compass
Mar. 25, 1986
4481718
Adjusting arrangement for compass repeaters
Nov. 13, 1984
4414752
Device for the correction of an error in the electric transmission of an indication
Nov. 15, 1983
3967384
Start-up conditioning means for an azimuth reference
Jul. 6, 1976
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