3795053

Information

• Patent Grant
• 3795053

• References
• Source

• Patent Number

  3,795,053

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1974
  50 years ago

• CPC

  • B43L9/002 - with perforated or marked discs

• US Classifications

  • 033 - Geometrical instruments