1657403

Information

• Patent Grant
• 1657403

• References
• Source

• Patent Number

  1,657,403

• Date Filed

  Not available

• Date Issued

  Tuesday, January 24, 1928
  96 years ago

• CPC

  • A01F17/04 - Pneumatic conveyors

• US Classifications

  • 406 - Conveyors: fluid current