Deutsche Version
TCoCD
Pictures
Slide Rules
IWA Rechenschieberfabrik
SR 722 Wasserrohrberechnung
IWA Rechenschieberfabrik SR 722 Wasserrohrberechnung
front side:
(click for larger images)
left end (37k)
right end (37k)
type
:
scales
:
front:
upper frame
slide
lower frame
size:
length
width
weight
217 mm
45 mm
27 g
material:
frame & slide
runner
cardboard with plastic cover
-
production:
years
country
1934
Germany
TCoCD
Pictures
Slide Rules
IWA Rechenschieberfabrik
SR 722 Wasserrohrberechnung
Deutsche Version
Copyright © Andreas Tabak, 1998 - 2006
Last update on 21-Jul-2007
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