2251856

Information

• Patent Grant
• 2251856

• References
• Source

• Patent Number

  2,251,856

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1941
  83 years ago

• CPC

  • B63H16/00 - Effecting propulsion by muscle power
  • B63B2741/00 - Manual propulsion Paddles
  • Y10T74/1544 - Multiple acting
  • Y10T74/1579 - Reversible

• US Classifications

  • 074 - Machine element or mechanism