1550957

Information

• Patent Grant
• 1550957

• References
• Source

• Patent Number

  1,550,957

• Date Filed

  Not available

• Date Issued

  Tuesday, August 25, 1925
  99 years ago

• CPC

  • B22C1/12 - for manufacturing permanent moulds or cores

• US Classifications

  • 106 - Compositions: coating or plastic