1521831

Information

• Patent Grant
• 1521831

• References
• Source

• Patent Number

  1,521,831

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1925
  100 years ago

• CPC

  • A01M9/0053 - Mechanical dusters
  • A45F3/16 - Water-bottles Mess-tins Cups

• US Classifications

  • 222 - Dispensing
  • 406 - Conveyors: fluid current