2172381

Information

• Patent Grant
• 2172381

• References
• Source

• Patent Number

  2,172,381

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1939
  85 years ago

• CPC

  • F27D3/028 - Roller rails or succession of small sized rollers

• US Classifications

  • 193 - Conveyors, chutes, skids, guides, and ways