1587222

Information

• Patent Grant
• 1587222

• References
• Source

• Patent Number

  1,587,222

• Date Filed

  Not available

• Date Issued

  Tuesday, June 1, 1926
  98 years ago

• CPC

  • B01D35/24 - Providing loose granular material to scratch the filters clean
  • B31C7/08 - Forming pointed cones

• US Classifications

  • 493 - Manufacturing container or tube from paper