3495334

Information

• Patent Grant
• 3495334

• References
• Source

• Patent Number

  3,495,334

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1970
  55 years ago

• CPC

  • B43L11/08 - for drawing involutes

• US Classifications

  • 033 - Geometrical instruments
  • 037 - Excavating