457755

Information

• Patent Grant
• 457755

• References
• Source

• Patent Number

  457,755

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1891
  133 years ago

• CPC

  • B24B55/02 - Equipment for cooling the grinding surfaces
  • Y10S29/072 - Dip or splash supply
  • Y10S29/077 - with separator or filter

• US Classifications

  • 451 - Abrading
  • 029 - Metal working