Justia Patents Horology Patents 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] Patents Regular Striking Mechanisms Giving The Full Hour, Half Hour, Or Quarter Hour [g04b 21/02] Patents Sounding Bodies; Whistles; Musical Apparatus (with Electroacoustical Transmitters Subclass 580; Sounding Arrangements In Alarm Clocks Subclass 237; Cases With Arrangements For Enhancing Sound Production Subclass 303; Carillons And Sounding Boards G10f 1/08, 1/10, G10d 13/08) [g04b 21/08] Patents (Class 968/225)

Sounding Bodies; Whistles; Musical Apparatus (with Electroacoustical Transmitters Subclass 580; Sounding Arrangements In Alarm Clocks Subclass 237; Cases With Arrangements For Enhancing Sound Production Subclass 303; Carillons And Sounding Boards G10f 1/08, 1/10, G10d 13/08) [g04b 21/08] Patents (Class 968/225)

There are no patents to show for this class.