3838520

Information

• Patent Grant
• 3838520

• References
• Source

• Patent Number

  3,838,520

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1974
  50 years ago

• CPC

  • B43L1/126 - withinterposed adhesive substances
  • G01B3/1084 - Particular applications of tape measures or special adaptations thereto
  • G01B2003/1089 - for drawing, marking, cutting
  • G01B2003/1094 - for calculating, recording, indicating; aide memoire

• US Classifications

  • 033 - Geometrical instruments
  • 434 - Education and demonstration