1421416

Information

• Patent Grant
• 1421416

• References
• Source

• Patent Number

  1,421,416

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1922
  102 years ago

• CPC

  • C01B17/0221 - Melting

• US Classifications

  • 023 - Chemistry: physical processes
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing