1446820

Information

• Patent Grant
• 1446820

• References
• Source

• Patent Number

  1,446,820

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1923
  101 years ago

• CPC

  • A01F11/04 - for clover or like seeds
  • B60T7/124 - Brakes for railway vehicles coming into operation in case of accident, derailment or damage of rolling stock or superstructure

• US Classifications

  • 246 - Railway switches and signals