AN EFFICIENT HEATING GAS BURNER. AN IMPROVED STEAM ACTUATED VALVE. KWIS'S STEAM ACTUATED VALVE. A WIDOW SASH FASTENER. KIRSCH'S WINDOW SASH FASTENER. The Germ of Smallpox. A Home for Truants. I WILLIAMSON & BUZBY'S HEATING GAS BURNER A HIGH WINDMILL. A HIGH WINDMILL., scientific american, 1894-05-12
Keywords:
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