1371772

Information

• Patent Grant
• 1371772

• References
• Source

• Patent Number

  1,371,772

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1921
  104 years ago

• CPC

  • B23Q1/585 - perpendicular to the working surface
  • Y10T409/306048 - with means to advance work or product

• US Classifications

  • 409 - Gear cutting, milling, or planing