"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 |
| 4970377 | Odometer An odometer having a reset mechanism with a single spring that has a torsion section acting on the reset mechanism to bias pinions into engagement with the odometer wheels and a compression section for biasing the pinions into a predetermined axial positi... | 11/13/1990 |
| 4970378 | Gearing for reset trip odometer Geared drive for reset trip odometer in which a transfer tooth on each of the rotatable odometer wheels is immediately ahead of the tooth space in the circular track on the wheels for tracking the wide teeth of the associated transfer pinion gear and late... | 11/13/1990 |
| 4612435 | Roller counting device with zero reset mechanism A simple mechanical counting device is disclosed. The counting device includes a simple zero reset mechanism which enables the counter to be easily reset to zero by the use of a finger of the human hand.... | 09/16/1986 |
| 4500779 | Meter encoding register having improved zeroing mechanism A multiple-shaft meter encoding register having each shaft clutched to the gear train includes a cam attached to each shaft in a predetermined angular relationship thereto. An alignment tool is removably positioned in a predetermined position with respect... | 02/19/1985 |
| 4009370 | Counting or indicating ring device A counting or indicating ring device has indicating rings which are respectively provided with numerals or marks on a pitch circle thereof and are supported by a shaft, step advancing means spaced adjacent to one of the indicating rings to advance it step... | 02/22/1977 |
| 3988576 | Presettable counter mechanism A presettable counter operated control mechanism employing a spring lock latching arrangement for releasably locking a rotatable control member in different angularly loaded positions. A coil spring connected to the control member encircles a first drum a... | 10/26/1976 |