1377721

Information

• Patent Grant
• 1377721

• References
• Source

• Patent Number

  1,377,721

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1921
  103 years ago

• CPC

  • A47L5/04 - with pistons, bellows, or diaphragms
  • Y10S15/08 - Dust bags and separators

• US Classifications

  • 055 - Gas separation
  • 015 - Brushing, scrubbing, and general cleaning