3631551

Information

• Patent Grant
• 3631551

• References
• Source

• Patent Number

  3,631,551

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • B63C7/12 - by bringing air or floating bodies or material into vessels or objects
  • B63C11/52 - Tools specially adapted for working underwater, not otherwise provided for

• US Classifications

  • 441 - Buoys, rafts, and aquatic devices
  • 114 - Ships