2021469

Information

• Patent Grant
• 2021469

• References
• Source

• Patent Number

  2,021,469

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1935
  89 years ago

• CPC

  • F01L31/02 - with tripping-gear Tripping of valves

• US Classifications

  • 091 - Motors: expansible chamber type