2139403

Information

• Patent Grant
• 2139403

• References
• Source

• Patent Number

  2,139,403

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1938
  86 years ago

• CPC

  • B23Q7/1473 - comprising screw conveyors
  • Y10T29/5196 - Multiple station with conveyor
  • Y10T29/5337 - including assembly pallet
  • Y10T74/19823 - Screw

• US Classifications

  • 029 - Metal working
  • 012 - Boot and shoe making
  • 074 - Machine element or mechanism
  • 198 - Conveyors: power-driven