1788691

Information

• Patent Grant
• 1788691

• References
• Source

• Patent Number

  1,788,691

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1931
  94 years ago

• CPC

  • B63B22/08 - having means to release or urge to the surface a buoy on submergence thereof
  • B63B2205/08 - with means for recovering the sunken object

• US Classifications

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