1520450

Information

• Patent Grant
• 1520450

• References
• Source

• Patent Number

  1,520,450

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1924
  100 years ago

• CPC

  • B23Q17/0933 - Cutting angles of milling cutters

• US Classifications

  • 033 - Geometrical instruments