US PATENT SUBCLASS 33 / 361
.~.~ Electro-magnet or inductor (e.g., flux valve, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


33 /   HD   GEOMETRICAL INSTRUMENTS

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
355 R  DF  .~ Magnetic field responsive {6}
361.~.~ Electro-magnet or inductor (e.g., flux valve, etc.) {1}
362  DF  .~.~.~> Inductor rotated or vibrated

DEFINITION

Classification: 33/361

(under subclass 355) Device wherein the means influenced by the external magnetic field is either an electromagnet (e.g.,

electromagnetic compass needle) or an inductor (e.g., armature, flux valve, flux gate, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

363, for a magnetic compass utilizing an electromagnet or an inductor in a telemetering circuit.