453947

Information

• Patent Grant
• 453947

• References
• Source

• Patent Number

  453,947

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1891
  133 years ago

• CPC

  • B61G3/14 - Control devices
  • A23G3/50 - characterised by shape, structure or physical form

• US Classifications

  • 213 - Railway draft appliances