Difference between revisions of "File:Hydrometer.png"
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(Hydrometer from Practical Physics, publ. 1914 by Macmillan and Company - now in the public domain under US copyright law since it was published before 1923.) |
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Revision as of 04:47, 2 July 2006
Hydrometer from Practical Physics, publ. 1914 by Macmillan and Company - now in the public domain under US copyright law since it was published before 1923.
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current | 04:47, 2 July 2006 | 130 × 322 (18 KB) | BrewWiki (Talk | contribs) | Hydrometer from Practical Physics, publ. 1914 by Macmillan and Company - now in the public domain under US copyright law since it was published before 1923. |
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