Dietzgen 1778a Slide Rule - Hazen-Williams Hydraulic.
Artist/creator - 1984.040.001
E. Dietzgen Co.
Description
manufacturers of slide rules and drafting equipment
Related objects
Dietzgen 1740 8" linear slide rule
Artist/creator - 1986.081.001
Dietzgen 1749 10" Decimal Trig slide rule
Artist/creator - 1987.078.010
5" linear slide rule
Artist/creator - 1988.002.001
Dietzgen No. 1778
Maker - 2022.011.077
Dietzgen 1797-B 8 5 circular Binary Slide Rule
Maker - 2022.011.088