97900

Information

• Patent Grant
• 97900

• References
• Source

• Patent Number

  97,900

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1869
  155 years ago

• CPC

  • B43L17/08 - Roller blotters

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 451 - Abrading