US PATENT SUBCLASS 968 / 305-- .~ For clock parts, e.g., for the escapement or the electric motor, etc. (protection cases and air tight vacuum means for clockwork parts subclass 338) [G04B 37/00M]

US PATENT SUBCLASS 968 / 305
.~ For clock parts, e.g., for the escapement or the electric motor, etc. (protection cases and air tight vacuum means for clockwork parts subclass 338) [G04B 37/00M]

968 /	HD	HOROLOGY

294	DD	CASES (cases with a special shape subclass 390; ornamentation of the case subclass 395; cartridges A45C 11/00-11/38) [G04B 37/00] {13}
305		.~ For clock parts, e.g., for the escapement or the electric motor, etc. (protection cases and air tight vacuum means for clockwork parts subclass 338) [G04B 37/00M]