3680444

Information

• Patent Grant
• 3680444

• References
• Source

• Patent Number

  3,680,444

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  52 years ago

• CPC

  • F01B13/04 - with more than one cylinder
  • F01B1/0668 - Supporting and guiding means for the piston

• US Classifications

  • 091 - Motors: expansible chamber type