497912

Information

• Patent Grant
• 497912

• References
• Source

• Patent Number

  497,912

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1893
  131 years ago

• CPC

  • D01H5/78 - with flutes or other integral surface characteristics

• US Classifications

  • 019 - Textiles: fiber preparation
  • 492 - Roll or roller