Chemical Calculator

Chemical Calculator

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Mason L. Farrow (1905-1984), a young chemist in Colorado, obtained a copyright on the Chemical Calculator in 1933. The Chemical Rubber Company in Cleveland, Ohio, produced and distributed the form.
Currently not on view
Object Name
Chemical Calculator
place made
United States: Ohio, Cleveland
Associated Place
United States: New Jersey
Physical Description
paper, cardboard (overall material)
overall: 18.4 cm; 7 1/4 in
overall: 7 1/4 in; 18.415 cm
ID Number
accession number
catalog number
Credit Line
Kenyon College, Department of Physics
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
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