US PATENT SUBCLASS 968 / 27-- .~ Mechanical winding up; winding up with special equipment (removably- mounted keys subclass 29; winding up equipment for clocks with automatic winding up equipment subclass 40) [G04B 3/00F)

US PATENT SUBCLASS 968 / 27
.~ Mechanical winding up; winding up with special equipment (removably- mounted keys subclass 29; winding up equipment for clocks with automatic winding up equipment subclass 40) [G04B 3/00F)

968 /	HD	HOROLOGY

23	DD	NORMAL WINDING OF CLOCKWORKS BY HAND OR MECHANICALLY; WINDING UP SEVERAL MAINSPRINGS OR DRIVING WEIGHTS SIMULTANEOUSLY (see note attached to this subclass) {10}
27		.~ Mechanical winding up; winding up with special equipment (removably- mounted keys subclass 29; winding up equipment for clocks with automatic winding up equipment subclass 40) [G04B 3/00F)