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- Adams, Edith 1
- Arnold, Frank H. 1
- Canada. Office of the Director of Civil Air Raid Precautions 1
- Electrical Research Laboratories 1
- General Chemical Company
- Gordon & Belyea Limited 1
- Green, George, 1872-1955 1
- Hammerton, J. A. (John Alexander), 1871-1949 1
- Holst, Bernhart Paul, 1861- 8
- Johnson, Clifton, 1865-1940 1
- Johnston, Harry H. 1
- Klickmann, Flora 1
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Nichols Chemical Co. Ltd. - D.D. Coolers Scrubbers and Settling Tanks with Pumps | Technical Drawing | 1928 |
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Nichols Chemical Co. Ltd. - Drawing No. 6312 | Technical Drawing | 1928 |
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Nichols Chemical Co. Ltd. - Drawing No. 6381 | Technical Drawing | 1946 |
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Nichols Chemical Co. Ltd. - Drawing No. 52499 | Technical Drawing | 1947 |