1989757

Information

• Patent Grant
• 1989757

• References
• Source

• Patent Number

  1,989,757

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1935
  90 years ago

• CPC

  • B60C11/22 - Tread rings between dual tyres
  • Y10T152/10594 - Mutually free walls

• US Classifications

  • 152 - Resilient tires and wheels