"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 |
| 4973480 | Tamper evident pharmaceutical capsule A tamper evident pharmaceutical capsule which contains an active agent. The capsule is coated on its external surfaces to provide an indication of tampering.... | 11/27/1990 |
| 4869908 | Fibre formulations Tablets containing nutritional and therapeutic substances in conjunction with dietrary fibre substances. The tablets can be formulated in two layers which separate the nutritional and therapeutic substances from the fibre.... | 09/26/1989 |