1888287

Information

• Patent Grant
• 1888287

• References
• Source

• Patent Number

  1,888,287

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1932
  92 years ago

• CPC

  • E01B3/32 - with armouring or reinforcement

• US Classifications

  • 238 - Railways: surface track