3728912

Information

• Patent Grant
• 3728912

• References
• Source

• Patent Number

  3,728,912

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1973
  51 years ago

• CPC

  • B62M11/145 - built in, or adjacent to, the bottom bracket
  • F16H61/0293 - the signals being purely mechanical
  • F16H2716/02 - the control being mechanical
  • Y10T74/19237 - Internal-external gears
  • Y10T74/2199 - Set screw

• US Classifications

  • 475 - Planetary gear transmission systems or components
  • 074 - Machine element or mechanism
  • 280 - Land vehicles