2681631

Information

• Patent Grant
• 2681631

• References
• Source

• Patent Number

  2,681,631

• Date Filed

  Not available

• Date Issued

  Tuesday, June 22, 1954
  70 years ago

• CPC

  • B63B21/42 - of ploughshare type
  • B63B2021/262 - by drag embedment

• US Classifications

  • 114 - Ships