1764889

Information

• Patent Grant
• 1764889

• References
• Source

• Patent Number

  1,764,889

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1930
  94 years ago

• CPC

  • B22C9/10 - Cores Manufacture or installation of cores
  • Y10S164/08 - Piston

• US Classifications

  • 164 - Metal founding