Archive
of
Collections
Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear / Disks
Duct Slide Rule
Datalizer for Air Conditioning Contractors of America
USA
Plastic
c. 2005
21.5 cm x 28 cm
Cooling Industry
Notes:
Used to calculate ducting requirements including some interesting on-linear scales
Image 1
Image 2