1211686

Information

• Patent Grant
• 1211686

• References
• Source

• Patent Number

  1,211,686

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1917
  108 years ago

• CPC

  • F01L23/00 - Valves controlled by impact by piston
  • F04B9/1207 - using a source of partial vacuum or sub-atmospheric pressure

• US Classifications

  • 091 - Motors: expansible chamber type