3257000

Information

• Patent Grant
• 3257000

• References
• Source

• Patent Number

  3,257,000

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1966
  58 years ago

• CPC

  • B61G9/125 - with only metal springs

• US Classifications

  • 213 - Railway draft appliances
  • 188 - Brakes