"The radio craze will die out in time."
Thomas Edison ; 1922
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| Number | Title | Issue Date |
| 4907347 | Swivel head counter A swivel head counter for accurately measuring line in tension, such as a downrigger line passing over a pulley and the pulley driving a compact gear train. The gear train drives a counter wheel or knob so that actual depth or extension of downrigger line... | 03/13/1990 |