"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 |
| 6144301 | Electronic tracking tag An electronic tracking tag 10 may be attached to various types of physical assets to assist in asset identification. The plastic material tag body 12 includes a receiving cavity 60 therein so that a drawer 14 and an RFID transponder 16 may be slid into th... | 11/07/2000 |
| 6024874 | Hydrocyclone separator A hydrocyclone separator (10) has an outer housing (12) including an upper housing portion (14) and a lower housing portion (16). Upper housing portion (14) has a cylindrical chamber (22) and an involuted entrance (20) to cylindrical chamber (22). A vorte... | 02/15/2000 |