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English/metric conversion mechanism for speedometers

  • US 4,284,028 A
  • Filed: 02/14/1979
  • Issued: 08/18/1981
  • Est. Priority Date: 02/14/1979
  • Status: Expired due to Term
First Claim
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1. A speed conversion apparatus adapted for attachment to a speed measuring device of a motor vehicle and the like wherein said speed measuring device has a rotatable drive member which is driven by a motive drive source and a speed indicator indexed in units of a first system of measurement to indicate the speed of said motor vehicle in response to the rate of rotation of said rotatable drive member, said speed conversion apparatus comprising:

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