1389190

Information

• Patent Grant
• 1389190

• References
• Source

• Patent Number

  1,389,190

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1921
  103 years ago

• CPC

  • F42B19/28 - with means for avoiding visible wake

• US Classifications

  • 114 - Ships
  • 060 - Power plants