2744257

Information

• Patent Grant
• 2744257

• References
• Source

• Patent Number

  2,744,257

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1956
  68 years ago

• CPC

  • E03D1/056 - providing an air lock
  • E03D1/05 - with movable siphon bells

• US Classifications

  • 004 - Baths, closets, sinks, and spittoons