198 IMPROVED RAILROAD HAND BRAKE. To Prevent Burrs from Heating. COMBINED SPADE AND FORK. FOSTER'S RAILROAD HAND BRAKE. The Geographical Distribution of Mineral Oils. Incrustation of Water Pipes. A Chemical Remedy for the Potato Disease. COMBINED WATER AND PRESSURE GAGE., scientific american, 1873-09-27
198 IMPROVED RAILROAD HAND BRAKE. To Prevent Burrs from Heating. COMBINED SPADE AND FORK. FOSTER'S RAILROAD HAND BRAKE. The Geographical Distribution of Mineral Oils. Incrustation of Water Pipes. A Chemical Remedy for the Potato Disease. COMBINED WATER AND PRESSURE GAGE., scientific american, 1873-09-27
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