198391

Information

• Patent Grant
• 198391

• References
• Source

• Patent Number

  198,391

• Date Filed

  Not available

• Date Issued

  Tuesday, December 18, 1877
  147 years ago

• CPC

  • F04B39/045 - Labyrinth-sealing between piston and cylinder
  • Y10T74/2152 - Hollow rod, lubricated

• US Classifications

  • 092 - Expansible chamber devices
  • 074 - Machine element or mechanism
  • 123 - Internal-combustion engines
  • 184 - Lubrication