For over 50 years ago, De Leon Import & Export Corporation distributed the ideal slide rules acceptable for all markets in the world. Hemmi Bamboo Slide Rules were supplied to students and professionals in the Philippines by the company and today, continues to distribute modern and efficient instruments to an array of specialized fields.

After steady research for many years, Hemmi Bamboo Slide Rule Manufacturing Company finally reached to a top level of technique assuring to make the slide rules of excellent quality applicable for all purposes of calculation.

Now, we have the pleasure of recalling just a few of the important properties on Hemmi Bamboo Slide Rules.

  
 
DUPLEX 10"  HEMMI No. 250
For General Computation
 

No. 250 Leather Case

 

Convenient for computation of multiplication and division using DF, CF, scales folded at square 10.
Scales
Uses
DF, CF, CIF (square root of 10 - folded), D, C, CI
Mutliplication, Division & Proportion
L
Common logarithm
K
Cube & Cube root
A, B
Square & Square root
TI2, TI1, SI, D, DI
Trigonometric Function

   

 
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