1566550

Information

• Patent Grant
• 1566550

• References
• Source

• Patent Number

  1,566,550

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1925
  99 years ago

• CPC

  • E01B3/42 - combined with inserts of wood or other material

• US Classifications

  • 238 - Railways: surface track
  • 106 - Compositions: coating or plastic
  • 524 - Synthetic resins or natural rubbers