1689135

Information

• Patent Grant
• 1689135

• References
• Source

• Patent Number

  1,689,135

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1928
  96 years ago

• CPC

  • B24B3/085 - using a template
  • Y10T409/301176 - Reproducing means

• US Classifications

  • 451 - Abrading
  • 125 - Stone working
  • 409 - Gear cutting, milling, or planing