Henley's twentieth century book of formulas, processes and trade secrets : containing ten thousand selected household, workshop and scientific formulas, trade secrets, chemical recipes, processes and money saving ideas; a valuable reference book for the home, the factory, the office, and the workshop.
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| Format: | Book |
| Language: | English |
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New York :
N.W. Henley Pub. Co.,
1934
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| Edition: | New rev. and improved ed., |
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| Physical Description: | 809 pages : illustrations diagram |
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| Bibliography: | "Partial list of authorities consulted": 4th prelim. leaf. |