698590

Information

• Patent Grant
• 698590

• References
• Source

• Patent Number

  698,590

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1902
  122 years ago

• CPC

  • B22D18/06 - Vacuum casting
  • Y10S164/09 - Piston-vacuum

• US Classifications

  • 164 - Metal founding