3383822

Information

• Patent Grant
• 3383822

• References
• Source

• Patent Number

  3,383,822

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1968
  56 years ago

• CPC

  • E03F5/06 - Gully gratings
  • E04C2/425 - made of perforated bars
  • E04F15/02166 - wherein the grooves are filled with inserts
  • E04F19/10 - Built-in gratings

• US Classifications

  • 052 - Static structures