Magnetic gyroscope

Magnetic heading reference for a vehicle

Magnetic liquid level indicator

Magnetic repeater or compass

Magnetic resonance cell

Magnetic shield for a fiber optic gyroscope

Magnetic single shot inclinometer

Magnetic suspension apparatus

Magnetic suspension with magnetic stiffness augmentation

Magnetic torpedo level

Magnetohydrodynamic gyroscope

Managing landbases and machine operations performed thereon

Map downloading system with gps and transceiver

Map information distribution center and map information...

Map navigation system

Map update data supplying apparatus, version table, map data...

Marine compass

Marine instrument

Marine streamer position determination system

Mariners' compass