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CONTROLLER 75 R   ( Diameter = 75 mm )



CONTROLLER - CALCULATOR,  Muenchen / Germany               (1962)
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S C A L E S  of the CIRCULAR SLIDE RULE  »CONTROLLER«  Model 75 R
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                                               ( one-sided only )

   X                                              outer circle
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   X                                             inner circles
   1/X
   X2

R E M A R K :                 Same as Model 110 R - only smaller:
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This circular SR came in a green plastic case with an instruction
booklet. On the back side of the CONTROLLER is a conversion table
and a table with physical constants printed ...

           

      ... and rolled, it measures the LENGTH of a CURVE in [ cm ]

                   Back to the » MODEL 110 R «
impressum:
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© C.HAMANN   http://public.beuth-hochschule.de/~hamann   04/24/14