3807904

Information

• Patent Grant
• 3807904

• References
• Source

• Patent Number

  3,807,904

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  50 years ago

• CPC

  • F01B11/00 - Reciprocating-piston machines or engines without rotary main shaft
  • F02G1/0435 - the engine being of the free piston type
  • F02G2270/70 - Liquid pistons
  • F02G2275/40 - for starting
  • F05C2225/08 - Thermoplastics

• US Classifications

  • 417 - Pumps