1837508

Information

• Patent Grant
• 1837508

• References
• Source

• Patent Number

  1,837,508

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1931
  93 years ago

• CPC

  • B63H19/06 - by discharging gas into ambient water

• US Classifications

  • 114 - Ships
  • 440 - Marine propulsion