Mechanical Appliances, Mechanical Movements and Novelties of Construction... for Engineers, Draughtsmen, Inventors, Patent Attorneys, and All Others Interested in Mechanical Operations. Including an Explanatory Chapter on the Leading Conceptions of Perpet
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Mechanical Appliances, Mechanical Movements and Novelties of Construction... for Engineers, Draughtsmen, Inventors, Patent Attorneys, and All Others Interested in Mechanical Operations. Including an Explanatory Chapter on the Leading Conceptions of Perpet