Devices for selective display of information

Details Devices for selective display of information Devices for selective display of information

1975-06-16

1976-07-20

Tomsky, Stephen J.

Music

Accessories

Teaching devices

235 88R, G09B 1502

Patent

active

039699730

ABSTRACT:
A musical information display device includes first and second relatively rotatable members, the first member bearing spaced musical indicia and the second member including apertures registrable with the first member indicia on such rotation and aperture-closing elements, each operable independently of the condition of closure of the remainder of such elements. The musical indicia are arranged in such progression as the chromatic scale and numeric identifiers are associated with the aperture-closing elements and are arranged in sequential order to be displayed selectively on operation of the aperture-closing elements.

REFERENCES:
patent: 675345 (1901-05-01), Bauer
patent: 1643303 (1927-09-01), Jones
patent: 2657610 (1953-11-01), Carran, Jr.
patent: 3481241 (1969-12-01), Gaillard
patent: 3592099 (1971-07-01), Gibby
patent: 3635122 (1972-01-01), Perrault
patent: 3728932 (1973-04-01), Leonard

Affiliated with

Also associated with

Rating

Devices for selective display of information does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Devices for selective display of information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Devices for selective display of information will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-550066