- Rockin’ Patent: US Patent No. 877,259
- Filed: 6 December 1905
- In the name of: International Conservatory Of Music
- Title: Music-Indicator
- What’s claimed: ”In a music indicator, the combination with a signature finder scale adapted to be placed upon a key board having key-engaging means, of a support slidably associated therewith, and a carrier plate 30 reversibly journaled on the support and having indicating characters on its different sides, and means for rotating the plate.”
- Why this patent rocks: This patent appears to involve a music indicator which shows music sheet notations and the name of the note and major and minor chords on a device. This device is placed over the keyboard of a piano to indicate where the differing notes are for music teaching. For more information, see here.
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