1923435

Information

• Patent Grant
• 1923435

• References
• Source

• Patent Number

  1,923,435

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1933
  91 years ago

• CPC

  • B61G11/04 - with helical springs

• US Classifications

  • 105 - Railway rolling stock
  • 005 - Beds
  • 267 - Spring devices