US PATENT SUBCLASS 968 / 467
.~.~ Using mechanical coupling [G04C 3/04B]


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

Internet Version by PATENTEC © 1999      Terms of Use



968 /   HD   HOROLOGY

446  DD  ELECTROMECHANICAL CLOCKS OR WATCHES INDEPENDENT OF OTHER TIMEPIECES AND IN WHICH THE MOVEMENT IS MAINTAINED BY ELECTRIC MEANS (synchronization subclass 506) [G04C 3/00] {8}
466  DD  .~ Wherein movement is regulated by a balance (construction thereof subclass 110) [G04C 3/04] {2}
467.~.~ Using mechanical coupling [G04C 3/04B] {2}
468  DD  .~.~.~> With constant impulses [G04C 3/04B2]
469  DD  .~.~.~> Using other coupling means, e.g., electrostrictive, magnetostrictive, etc. [G04C 3/04D]