… Measuring or checking instruments, appliances and machines, not specified or included elsewhere …
Explanatory notes
… measured mechanically (tracing of diagrams on a recording plate, spring balance principle, etc.). Static … checking all parts of the ignition system (coils, sparking plugs, condensers, batteries, etc.), for ascertaining the … or for measuring the compression in the cylinders. (5) Planimeters , for measuring plane areas (e.g., on plans, …