1069281

Information

• Patent Grant
• 1069281

• References
• Source

• Patent Number

  1,069,281

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1913
  111 years ago

• CPC

  • B63C11/38 - with entrance above water surface

• US Classifications

  • 405 - Hydraulic and earth engineering