US PATENT SUBCLASS 361 / 148
.~.~.~ Calibration or permanent magnet

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

Internet Version by PATENTEC © 1999      Terms of Use


361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
143  DF  .~ Systems for magnetizing, demagnetizing, or controlling the magnetic field {5}
147  DF  .~.~ With permanent magnet {1}
148.~.~.~ Calibration or permanent magnet

DEFINITION

Classification: 361/148

Calibration or permanent magnet:

(under subclass 147) Subject matter wherein the strength of the field of the permanent magnet is adjusted to a predetermined value.