1971927

Information

• Patent Grant
• 1971927

• References
• Source

• Patent Number

  1,971,927

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1934
  90 years ago

• CPC

  • E01B9/486 - the clip being a shaped plate
  • Y10T29/29 - Railway-chair making

• US Classifications

  • 238 - Railways: surface track
  • 029 - Metal working