3143991

Information

• Patent Grant
• 3143991

• References
• Source

• Patent Number

  3,143,991

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1964
  60 years ago

• CPC

  • B63B23/18 - with arms pivoting on substantially vertical axes

• US Classifications

  • 114 - Ships
  • 414 - Material or article handling