442389

Information

• Patent Grant
• 442389

• References
• Source

• Patent Number

  442,389

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1890
  134 years ago

• CPC

  • B28B21/38 - introducing the material wholly or partly under pressure; Injection-moulding machines

• US Classifications

  • 162 - Paper making and fiber liberation