1981980

Information

• Patent Grant
• 1981980

• References
• Source

• Patent Number

  1,981,980

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1934
  90 years ago

• CPC

  • B61G11/04 - with helical springs

• US Classifications

  • 213 - Railway draft appliances
  • 105 - Railway rolling stock