3390406

Information

• Patent Grant
• 3390406

• References
• Source

• Patent Number

  3,390,406

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1968
  56 years ago

• CPC

  • E03D9/12 - Means to prevent freezing of lavatories

• US Classifications

  • 004 - Baths, closets, sinks, and spittoons
  • 138 - Pipes and tubular conduits