1384033

Information

• Patent Grant
• 1384033

• References
• Source

• Patent Number

  1,384,033

• Date Filed

  Not available

• Date Issued

  Tuesday, July 5, 1921
  103 years ago

• CPC

  • B22D31/005 - Sealing or impregnating porous castings

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 148 - Metal treatment