1991130

Information

• Patent Grant
• 1991130

• References
• Source

• Patent Number

  1,991,130

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1935
  90 years ago

• CPC

  • E04D13/0409 - Drainage outlets
  • E04D2013/044 - on multiple levels

• US Classifications

  • 285 - Pipe joints or couplings
  • 264 - Plastic and nonmetallic article shaping or treating: processes