"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 |
| 5487402 | Portable shelter with expandable frame A portable shelter having a frame whose members freely move between a maximum and a minimum dimension to enable selectively applying various sized shelter skins to the frame and to tauntly stretch the shelter skin thereon. The skin also comprises slidable... | 01/30/1996 |