1487142

Information

• Patent Grant
• 1487142

• References
• Source

• Patent Number

  1,487,142

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1924
  100 years ago

• CPC

  • B24B3/003 - for skate blades
  • Y10S451/906 - Machine element or unit

• US Classifications

  • 451 - Abrading