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Class Information
Number: 434/186
Name: Education and demonstration > Magnetic or gyro compass
Description: Subject matter relating to a device for determining directions by means of (a) a magnetic needle turning freely on a pivot and pointing to the magnetic north, or (b) a direction indicator controlled by a gyroscope.

Patents under this class:

Patent Number Title Of Patent Date Issued
7862882 Re-positionable magnetic art apparatus Jan. 4, 2011
7543392 Motion estimation method and system for mobile body Jun. 9, 2009
7126262 Piezoelectric vibration gyro element, method for manufacturing the same, and piezoelectric vibration gyro sensor Oct. 24, 2006
5940798 Feedback modification for reducing stuttering Aug. 17, 1999
4078317 Flight simulator system Mar. 14, 1978

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