Magnetic box call
US8216019B2 · kind B2 · utility
3Cited by
14References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Oct 5, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M31/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A game call having variable tonal qualities wherein one or more sound boards have a ferromagnetic material carried in a selected region and wherein a second ferromagnetic material is mounted for selective movement relative to the ferromagnetic material carried on the sound board to vary the tones created on the sound board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.