3473228

Information

• Patent Grant
• 3473228

• References
• Source

• Patent Number

  3,473,228

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1969
  55 years ago

• CPC

  • B43L13/24 - Devices for generating stepwise movements of drawing equipment

• US Classifications

  • 033 - Geometrical instruments