2156732

Information

• Patent Grant
• 2156732

• References
• Source

• Patent Number

  2,156,732

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1939
  85 years ago

• CPC

  • B27B17/025 - Composite guide bars
  • E21C25/30 - Chain guides
  • Y10T29/49879 - Spaced wall tube or receptacle

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 029 - Metal working