AN IMPROVED CENTRIFUGAL GOVERNOR. BERGER & NOEL'S CENTRIFUGAL GOVERNOR. A New Guupowder. LARGE TWIN GAS ENGINE. AN IMPROVED COTTON SEED CLEANER. BAUMGARTEN'S COTTON SEED CLEANER. LARGE TWIN GAS ENGINE, scientific american, 1889-04-13
AN IMPROVED CENTRIFUGAL GOVERNOR. BERGER & NOEL'S CENTRIFUGAL GOVERNOR. A New Guupowder. LARGE TWIN GAS ENGINE. AN IMPROVED COTTON SEED CLEANER. BAUMGARTEN'S COTTON SEED CLEANER. LARGE TWIN GAS ENGINE, scientific american, 1889-04-13
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