4. Data processing: measuring, calibrating, or testing
  5. Measurement system
  6. History logging or time stamping

Katherine R. Lehman

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Method and apparatus for determining the retail performance...

Data processing: measuring – calibrating – or testing – Measurement system – History logging or time stamping
Reexamination Certificate

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Method and apparatus for tracking retail performance metrics...

Registers – Systems controlled by data bearing records – Time analysis
Reexamination Certificate

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