1807689

Information

• Patent Grant
• 1807689

• References
• Source

• Patent Number

  1,807,689

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • B22D19/0027 - pistons
  • Y10S164/08 - Piston
  • Y10T29/49261 - by composite casting or molding

• US Classifications

  • 164 - Metal founding
  • 029 - Metal working
  • 092 - Expansible chamber devices