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DE3147502A1
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Friction disc mechanism with subdivided friction ring
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DE3127883A1
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Friction disc transmission for vehicles
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DE3043154A1
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Infinitely variable friction drive - has cone drives with motor shaft angled to hold cone surface parallel to drive plane
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DE2816914A1
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Gear train for high speed drive - has orbiting pinions meshing simultaneously with fixed and rotary sun gears
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DE2502157A1
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Torque clutch for friction drive - incorporates row of spheres between left and right hand groove
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