Automatic Feed for Water-tube Boilers. BY EGBERT P. WATSON. RECENTLY PATENTED INVENTIONS. Electrical Appliances. Engineering Improvements. Mechanical Devices. Miscellaneous Inventions. Designs., scientific american, 1898-12-11
Automatic Feed for Water-tube Boilers. BY EGBERT P. WATSON. RECENTLY PATENTED INVENTIONS. Electrical Appliances. Engineering Improvements. Mechanical Devices. Miscellaneous Inventions. Designs., scientific american, 1898-12-11
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