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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| D650742 | Plug connector | 12/20/2011 |
| D636812 | Guitar bridge | 04/26/2011 |
| 7667128 | Transducer for converting between mechanical vibration and electrical signal A transducer for converting mechanical vibrations to an electrical signal and/or for converting an electrical signal to mechanical vibration. Damping liquid damps the relative vibration of transducer components. The damping liquid can be selected to optimize the sou... | 02/23/2010 |
| 7476790 | Musical instrument neck joint The present invention provides a removable and adjustable neck joint between a neck and a body of a musical instrument. The neck includes a contoured mounting portion that engages a pocket included in the body. The mounting portion and pocket include engagement feat... | 01/13/2009 |
| 7291780 | Transducer for converting between mechanical vibration and electrical signal The present invention provides a transducer for converting between mechanical vibration and electrical signal, the transducer comprising a housing enclosing a substantially cylindrical permanent magnet and a coil, the magnet having a side-to-side polar orientation. ... | 11/06/2007 |
| 7244886 | Invisible electromagnetic pickup for a stringed musical instrument The present invention provides an electromagnetic pickup comprising a bobbin, a single coil wound around the bobbin and at least one pole piece coupled to the bobbin. The pickup is adapted for use with a stringed musical instrument including a body portion, a neck p... | 07/17/2007 |
| 7238877 | Musical instrument string ground circuit breaker The present invention is directed to a stringed, musical instrument where the instrument strings are grounded by a string ground circuit, and wherein the string ground circuit includes a circuit breaker having a current path that defines a portion of the string grou... | 07/03/2007 |
| 7235734 | Sensor array for a musical instrument The present invention provides a sensor array for detecting vibrations from a hollow-bodied musical instrument and converting the vibrations into electrical signals for amplification. The sensor array includes a plurality of sensors connected in series including a s... | 06/26/2007 |
| 7132597 | Transducer for converting between mechanical vibration and electrical signal Transducer (100, 200, 300, 500, 600) for converting mechanical vibrations to an electrical signal and/or for converting an electrical signal to mechanical vibration. Damping liquid (122, 222, 522, 622) damps the relative vibration of transducer compone... | 11/07/2006 |
| 6759581 | Acoustic stringed instrument body with relief cut An acoustic stringed instrument body includes a soundboard, a bottom surface and a side surface, wherein the soundboard includes a relief cut, wherein the relief cut is dimensioned to create a more flexible coupling between the soundboard and the sidewall, wherein t... | 07/06/2004 |
