3911584

Information

• Patent Grant
• 3911584

• References
• Source

• Patent Number

  3,911,584

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1975
  49 years ago

• CPC

  • A41H3/002 - Set squares or rulers for drafting patterns

• US Classifications

  • 033 - Geometrical instruments
  • D03 - Travel goods and personal belongings