TRISO / TOVARNA-MERIL / Slovenijales                     (2004)
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S C A L E S   of  the    T R I S O     » RIETZ «     Model 6502
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Front Side            [ inverse / RED ]               Back Side
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( 0 ...  27 cm Ruler )

K        X3
A        X2
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B        X2                                S         sin(0.1X)
[CI]     [1/X]                             ST        arc(0.01X)
C        X                                 T         tan(0.1X)
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D        X
L        lgX

R E M A R K S :                      (  1° = 60' ;   1' = 60" )
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The TRIGONOMETRIC SCALES are divided in MINUTES(') & SECONDS(")

Move the mouse over its cursor to see (Pop-Up)DETAILED PICTURES

According to the  HISTORY  of the company TRISO ( founded 1904)
- as the  diagram on the back side  shows - this slide rule was
made after 2004 under the company name TOVARNA MERIL ...

(*)  Donated to the INTERNATIONAL SLIDE RULE MUSEUM ...  

                    Historical Remarks ...
impressum:  
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© C.HAMANN     http://public.BHT-Berlin.de/hamann      12/05/21