1887424

Information

• Patent Grant
• 1887424

• References
• Source

• Patent Number

  1,887,424

• Date Filed

  Not available

• Date Issued

  Tuesday, November 8, 1932
  93 years ago

• CPC

  • E01B31/13 - by milling
  • Y10T409/306384 - with work supported guide means

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 104 - Railways
  • 451 - Abrading