162409

Information

• Patent Grant
• 162409

• References
• Source

• Patent Number

  162,409

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1875
  150 years ago

• CPC

  • F04B9/1295 - having two or more pumping chambers in series

• US Classifications

  • 091 - Motors: expansible chamber type