3548516

Information

• Patent Grant
• 3548516

• References
• Source

• Patent Number

  3,548,516

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1970
  54 years ago

• CPC

  • B63C11/325 - chambers used for it

• US Classifications

  • 434 - Education and demonstration
  • 004 - Baths, closets, sinks, and spittoons
  • 073 - Measuring and testing
  • 405 - Hydraulic and earth engineering