271201

Information

• Patent Grant
• 271201

• References
• Source

• Patent Number

  271,201

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1883
  141 years ago

• CPC

  • D06N7/0036 - characterised by their backing
  • D06M11/79 - with silicon dioxide, silicic acids or their salts
  • Y10T428/23921 - With particles

• US Classifications

  • 428 - Stock material or miscellaneous articles