1970204

Information

• Patent Grant
• 1970204

• References
• Source

• Patent Number

  1,970,204

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1934
  89 years ago

• CPC

  • C04B14/08 - Diatomaceous earth

• US Classifications

  • 502 - Catalyst, solid sorbent, or support therefor: product or process of making