1230702

Information

• Patent Grant
• 1230702

• References
• Source

• Patent Number

  1,230,702

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1917
  107 years ago

• CPC

  • B63C11/38 - with entrance above water surface

• US Classifications

  • 405 - Hydraulic and earth engineering