1772709

Information

• Patent Grant
• 1772709

• References
• Source

• Patent Number

  1,772,709

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1930
  94 years ago

• CPC

  • B63C7/12 - by bringing air or floating bodies or material into vessels or objects
  • B63C2007/125 - using buoyant masses

• US Classifications

  • 114 - Ships