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The ornamental design for a speed control mechanism, as shown and described. |
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FIG. 1 is a side elevation view taken from the right of a speed control mechanism embodying my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a front elevation view thereof; and
FIG. 6 is a side elevation view thereof taken from the left of FIG. 5. _
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| D343180, | Sep 23 1991 | Infinite gear ratio transmission | |
| D753743, | Mar 17 2015 | Nabtesco Corporation | Reduction gear |
| D753744, | Mar 17 2015 | Nabtesco Corporation | Reduction gear |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Feb 04 1980 | Owens Service Corporation | (assignment on the face of the patent) | / |
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