HEMMI SLIDE RULE CO., LTD.,  Tokyo / Japan               (1970)
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S C A L E S   of the  HEMMI  CIRCULAR SLIDE RULE   Model »1001«
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                                             ( one-sided only )
A       X2
D       X                                         outer circles
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C       X                                         inner circles
[CI]    [1/X]                                 [ inverse / RED ]
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L       lgX                                       center circle

REMARKS:
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This circular slide rule model »1001« is made out of plastic.
It came in a yellow/acryl plastic case with a booklet also for
model  »1002«  ( which has no lgX scale ).

                    Historical Remarks ...
impressum:
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© C.HAMANN     http://public.BHT-Berlin.de/hamann      11/23/07