The Scientific American cyclopedia of formulas : partly based upon the twenty-eighth edition of Scientific American cyclopedia of receipts, notes and queries / edited by Albert A. Hopkins

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Reason for copyright status:

Creator Date of Death is Before 1955

Copyright status was determined using the following information:

Material type:

Literary Dramatic Musical

Presumed date of death of creator (latest date):

1939

Published status:

Published

Publication date:

1937

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