US PATENT SUBCLASS 242 / 351
.~.~ Nonelectrical motor

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

Internet Version by PATENTEC © 1999      Terms of Use


242 /   HD   WINDING, TENSIONING, OR GUIDING

324  DF  UNWINDING AND REWINDING A MACHINE CONVERTIBLE INFORMATION CARRIER (E.G., MAGNETIC TAPE OR PHOTOGRAPHIC FILM) {13}
349  DF  .~ With particular drive {7}
351.~.~ Nonelectrical motor

DEFINITION

Classification: 242/351

Nonelectrical motor:

(under subclass 349) Subject matter wherein the drive mechanism includes an energy converter (motor) deriving force from an expanding spring, falling weight, dynamic fluid, or other nonelectrical source to cause winding or unwinding, which converter may be charged by an electric motor.