"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 6966117 | Carpenters pencil sharpener A carpenters pencil sharpener having a body member having a T-shaped opening in its front wall. The body member has an interior pencil sharpening chamber having respective left and right upper support platforms and respective left and right lower support platforms. ... | 11/22/2005 |
| 6427343 | Pencil sharpener having a pencil limiting device A pencil sharpener includes a casing secured in a housing and having a groove for receiving a pencil to be sharpened and having a cutter blade for sharpening the pencil. A device has a slide slidably received in the housing and has an extension extended f... | 08/06/2002 |
| 4594782 | Billiard cue tip shaper, scuffer, trimmer and gauge A cue tip shaper, scuffer, and gauge with a built-in edge trimmer. The device has a carbide lined depression and outwardly extending lugs, also carbide covered. Relative rotation between the device and a cue tip shapes the tip, scuffs it to accept chalk a... | 06/17/1986 |