3676182

Information

• Patent Grant
• 3676182

• References
• Source

• Patent Number

  3,676,182

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1972
  52 years ago

• CPC

  • D21H25/18 - of old paper as in books, documents
  • B41M7/0063 - Preservation or restoration of currency, books or archival material

• US Classifications

  • 427 - Coating processes