3557748

Information

• Patent Grant
• 3557748

• References
• Source

• Patent Number

  3,557,748

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  53 years ago

• CPC

  • G01D13/04 - Construction
  • G01D11/24 - Housings; Casings for instruments
  • G12B9/04 - Details

• US Classifications

  • 116 - Signals and indicators
  • 040 - Card, picture, or sign exhibiting
  • 324 - Electricity: measuring and testing