3820819

Information

• Patent Grant
• 3820819

• References
• Source

• Patent Number

  3,820,819

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B62M1/26 - characterised by rotary cranks combined with reciprocating levers
  • B62K3/12 - Tandems
  • B62M1/36 - with rotary cranks
  • B62K2700/54 - Frames for a plurality of cyclists Propulsion means therefor

• US Classifications

  • 280 - Land vehicles