418569

Information

• Patent Grant
• 418569

• References
• Source

• Patent Number

  418,569

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1889
  135 years ago

• CPC

  • E04C2/043 - of plaster
  • Y10T442/119 - Including a paper layer
  • Y10T442/122 - Two or more nonwoven fabric layers
  • Y10T442/157 - Two or more paper layers
  • Y10T442/643 - Including parallel strand or fiber material within the nonwoven fabric
  • Y10T442/693 - Including a paper layer

• US Classifications

  • 442 - Fabric