3715171

Information

• Patent Grant
• 3715171

• References
• Source

• Patent Number

  3,715,171

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1973
  51 years ago

• CPC

  • B63H1/24 - automatically foldable or unfoldable

• US Classifications

  • 416 - Fluid reaction surfaces