3878688

Information

• Patent Grant
• 3878688

• References
• Source

• Patent Number

  3,878,688

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1975
  49 years ago

• CPC

  • B63C5/04 - Bilge or keel blocks

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 114 - Ships