3256606

Information

• Patent Grant
• 3256606

• References
• Source

• Patent Number

  3,256,606

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1966
  58 years ago

• CPC

  • B43L5/002 - with pivoting drawing surface
  • B43L11/00 - Non-circular-curve-drawing instruments
  • G09B11/00 - Teaching hand-writing, shorthand, drawing, or painting

• US Classifications

  • 033 - Geometrical instruments