US PATENT SUBCLASS 166 / 66.5-- .~ Magnetic

US PATENT SUBCLASS 166 / 66.5
.~ Magnetic

Current as of: June, 1999
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166 /	HD	WELLS

65.1	DF	WITH ELECTRICAL MEANS {4}
66.5		.~ Magnetic

DEFINITION

Classification: 166/66.5

Magnetic:

(under subclass 65.1) Electrical component including permanent magnetic or electromagnet structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66.4, for well means including motor structure, the motor structure generally having magnetic elements.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth, appropriate subclass for an earth boring bit which is magnetized or includes a magnet.

294, Handling: Hand and Hoist-Line Implements,

65.5, for a grapple adapted to be used in a borehole and provided with magnetic means.