2144744

Information

• Patent Grant
• 2144744

• References
• Source

• Patent Number

  2,144,744

• Date Filed

  Not available

• Date Issued

  Tuesday, January 24, 1939
  86 years ago

• CPC

  • F28G15/06 - Automatic reversing devices

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 251 - Valves and valve actuation