Improved Hand-Washing Device. Securing Pulleys Gear Wheels Etc. to Hollow or :Solid Shafting. Proposed Iron Bridge over the Housatonic River. DIETERICH'S HAND-WASHING DEVICE. Manufacture of Paper. DEVICE FOR SECURING PULLEYS GEAR WHEELS Etc TO HOLLOW OR SOLID SHAFTING., scientific american, 1870-12-03
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