US PATENT SUBCLASS 968 / 143-- .~.~ Construction and manufacture of the hands; arrangements for increasing reading accuracy (hands with illumination subclass 214; specially shaped hands, e.g., figures or pictures, etc., subclass 389; clockwork in the hands subclass 396; invisible drive of the hands subclass 397) [G04B 19/04B]

US PATENT SUBCLASS 968 / 143
.~.~ Construction and manufacture of the hands; arrangements for increasing reading accuracy (hands with illumination subclass 214; specially shaped hands, e.g., figures or pictures, etc., subclass 389; clockwork in the hands subclass 396; invisible drive of the hands subclass 397) [G04B 19/04B]

968 /	HD	HOROLOGY

139	DD	INDICATING BY VISUAL MEANS (by electric lamps subclass 576; indicating by acoustical means mechanically subclass 217, electrically subclass 580; acoustic signals at preselected times mechanically subclass 229, electrically subclass 580; optical time signals at preselected times mechanically subclass 244, electrically subclass 577; continuous time indication by electric means subclass 564; visible signalling arrangements G08B 5/00) [G04B 19/00] {10}
142	DD	.~ Hands; discs with a single mark or the like (moving indicating arrangements which have scales or numbers with stationary hands or reading means subclass 162; optical projection of the position of the hands subclass 216) [G04B 19/04] {4}
143		.~.~ Construction and manufacture of the hands; arrangements for increasing reading accuracy (hands with illumination subclass 214; specially shaped hands, e.g., figures or pictures, etc., subclass 389; clockwork in the hands subclass 396; invisible drive of the hands subclass 397) [G04B 19/04B]