500407

Information

• Patent Grant
• 500407

• References
• Source

• Patent Number

  500,407

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1893
  131 years ago

• CPC

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

• US Classifications

  • 091 - Motors: expansible chamber type