Musical scale determining device
US4960029A · kind A · utility
18Cited by
8References
3Claims
0Family size
Inventor
Key dates
| Filing date | Nov 13, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B15/026
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A musical scale determining device which takes the form of a conventional slide rule configuration. The device includes a sheet material body. Upon both the front and back surface are printed conventional musical notes in specific arrangements. A cursor is movably mounted on the body with the cursor including a plurality of transparent windows through which are to be observed the conventional musical notes on both the front and back surfaces of the body. Movement of the cursor in various positions is to disclose to the user a wide variety of different types of musical scales.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.