3475822

Information

• Patent Grant
• 3475822

• References
• Source

• Patent Number

  3,475,822

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1969
  55 years ago

• CPC

  • B43L13/24 - Devices for generating stepwise movements of drawing equipment
  • B44D3/38 - Cord line chalkers

• US Classifications

  • 033 - Geometrical instruments
  • 208 - Mineral oils: processes and products