1938227

Information

• Patent Grant
• 1938227

• References
• Source

• Patent Number

  1,938,227

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1933
  91 years ago

• CPC

  • D21B1/14 - Disintegrating in mills
  • B27K3/24 - Compounds of mercury

• US Classifications

  • 162 - Paper making and fiber liberation