"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 |
| 4183605 | Electrical connector with arcuate detent means An electrical connector having a receptacle means including a receptacle shell and a plug means including a plug shell, coupling means including a coupling housing engaged with a coupling nut for rotation of the coupling nut, the coupling nut having threa... | 01/15/1980 |
| 4066315 | Electrical connector with arcuate detent means An electrical connector having a receptacle means including a receptacle shell and a plug means including a plug shell, coupling means including a coupling housing engaged with a coupling nut for rotation of the coupling nut, the coupling nut having threa... | 01/03/1978 |