US PATENT SUBCLASS 968 / 222
.~.~ With locking wheel [G04B 21/02C]


Current as of: June, 1999
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968 /   HD   HOROLOGY

217  DD  INDICATING BY ACOUSTIC MEANS (at preselected times subclass 229; by electroacoustic means or electroacoustic time indicating subclass 582; time indicating by means other than acoustically, or combined means subclass 243; time indicating by visual means subclass 139; acoustic signalling arrangements G08B 3/00) [G04B 21/00] {2}
219  DD  .~ Regular striking mechanisms giving the full hour, half hour, or quarter hour [G04B 21/02] {8}
222.~.~ With locking wheel [G04B 21/02C]