EUGEN DIETZGEN CO., Chicago, Illinois / USA             (1950)
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SCALES of the  DIETZGEN  P O C K E T  » REDIRULE «  Model 1776
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Front Side                                           Back Side
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                                            K       X3
DF     πX                                   A       X2 
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CF     πX                                   B       X2
CIF    1/πX                                 T       tan(0.1X)
CI     1/X                                  ST      arc(0.01X)
C      X                                    S       sin(0.1X)
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D      X                                    D       X
L      lgX                                  DI      1/X

R E M A R K S :
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The pocket slide rule came in a brown leather case with a clip

                     Historical Remarks ...
impressum:
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© C.HAMANN     http://public.BHT-Berlin.de/hamann     08/09/08