1874112

Information

• Patent Grant
• 1874112

• References
• Source

• Patent Number

  1,874,112

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1932
  93 years ago

• CPC

  • B65G11/04 - for mail in buildings

• US Classifications

  • 193 - Conveyors, chutes, skids, guides, and ways
  • 105 - Railway rolling stock
  • 362 - Illumination