Reform of the Patent Laws. Miscellany about Uses and Abuses of Air. Railway Errors. Sheathing Ships with Zinc. Use of Chloroform In Scotland., scientific american, 1850-03-30

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Reform of the Patent Laws. Miscellany about Uses and Abuses of Air. Railway Errors. Sheathing Ships with Zinc. Use of Chloroform In Scotland., scientific american, 1850-03-30

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