back to the main page  ECO BRA  previous ECO BRA rule: Nr. 1261  The Collection of Calculating Devices  next ECO BRA rule: n.n. 
Deutsche Version
Deutsche Version
TCoCD Pictures Slide Rules ECO BRA n.n.

ECO BRA n.n.
ECO BRA n.n.: front (click for larger image, 40k)
front (click for larger image, 40k)

ECO BRA n.n.: back of slide (click for larger image, 16k)
back of slide (click for larger image, 16k)

type:  
scales:  front:  upper frame
    slide
    lower frame
  back:  slide
A
B, C
D
cm
size:  length
  width
  weight
145 mm
24 mm
26 g
material:  frame & slide
  runner
 
aluminium
clear plastic
(single sided)
production:  years
  country
 
 
TCoCD Pictures Slide Rules ECO BRA n.n.

back to the main page  ECO BRA  previous ECO BRA rule: Nr. 1261  The Collection of Calculating Devices  next ECO BRA rule: n.n. 
Deutsche Version
Deutsche Version

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