THE PREMIUM FOLDING STOOL AND CHAIR. A New Repeater. Gold on Alaska Islands. A DUSTLESS CARPET SWEEPER. AN IMPROVED KEY HOLE GUIDE AND ESCUTCHEON. PATTERSON'S KEY HOLE GUIDE AND ESCUTCHEON. AN IMPROVED WATER GAUGE FLOAT. ORLOB'S RULING PEN., scientific american, 1887-07-09
THE PREMIUM FOLDING STOOL AND CHAIR. A New Repeater. Gold on Alaska Islands. A DUSTLESS CARPET SWEEPER. AN IMPROVED KEY HOLE GUIDE AND ESCUTCHEON. PATTERSON'S KEY HOLE GUIDE AND ESCUTCHEON. AN IMPROVED WATER GAUGE FLOAT. ORLOB'S RULING PEN., scientific american, 1887-07-09
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