3863544

Information

• Patent Grant
• 3863544

• References
• Source

• Patent Number

  3,863,544

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1975
  50 years ago

• CPC

  • B44B1/04 - having devices for changing
  • Y10T409/3014 - Pivotally supported for vertical movement

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 033 - Geometrical instruments