"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 |
| 4145063 | Ski boot scraper A ski boot scraper which is light in weight and is removably attachable to a ski pole and will not interfere with the normal use of the ski pole. The boot scraper is a little more semi-cylindrical shaped in cross section and will yieldingly contact with t... | 03/20/1979 |
| 4023291 | Combination bootscraper and nameplate An advertising device carrying a name on the scraper plate and having an attachment bracket which can be used as a stake to fix the bootscraper to the earth. The same attachment bracket can also fasten the name-bearing plate to the license plate support o... | 05/17/1977 |
| 4000909 | Ski boot snow scraper A ski boot snow scraper is attached to one of a skier's ski poles and is readily available to remove the caked snow from the bottom of a ski boot so that the ski boot can be properly and safely placed and clamped within the bindings of the ski.... | 01/04/1977 |
| 3999773 | Combination ski boot scraper and anti-theft device A combination boot scraper adapted to scrape the snow off the sole of a ski boot and an anti-theft device is disclosed. The combination boot scraper and anti-theft device comprises a flat substantially rectangular base having an upper surface and a lower ... | 12/28/1976 |
| 3976304 | Ski boot scraper A device adapted to be mounted on, or integral with, the upper surface of a snow ski for the purpose of removing ice, snow, mud, and the like from the bottom of a skier's boot prior to insertion of the boot into the binding. The device is generally in the... | 08/24/1976 |
| 3976303 | Boot scraper for skiis A device adapted to be mounted on, or integral with the upper surface of a snow ski for the purpose of removing ice, snow, mud, and the like from the bottom of a skier's boot prior to insertion of the boot into the binding. The device may be in the shape ... | 08/24/1976 |