1428630

Information

• Patent Grant
• 1428630

• References
• Source

• Patent Number

  1,428,630

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1922
  102 years ago

• CPC

  • B22C19/06 - Devices for rapping or loosening the pattern

• US Classifications

  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices
  • 366 - Agitating