"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 |
| 4299288 | Durable lightweight horseshoe and accessories A lightweight horseshoe has an open sided swedge in the ground surface thereof with a contour which accommodates wear inserts and accessories at selected positions on the shoe.... | 11/10/1981 |