3573441

Information

• Patent Grant
• 3573441

• References
• Source

• Patent Number

  3,573,441

• Date Filed

  Not available

• Date Issued

  Tuesday, April 6, 1971
  53 years ago

• CPC

  • B61L1/161 - characterised by the counting methods
  • B61L1/165 - Electrical
  • G01B21/06 - specially adapted for measuring length or width of objects while moving

• US Classifications

  • 702 - Data processing: measuring, calibrating, or testing
  • 246 - Railway switches and signals
  • 324 - Electricity: measuring and testing