American Heritage's Invention & Technology

American Heritage's Invention & Technology

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Ford Ranger 4x4. BOfOBMB. POSTFIX W here is the ... I delved deeper. Otis built the first safety elevator a€” which wouldna#39;t drop even if the hoisting rope broke a€” at a factory where he was working ... faulty equipment. From the Otis archives I produced engineering drawings, sales literature, and maintenance manuals from anbsp;...

Title:American Heritage's Invention & Technology
Publisher: - 1988


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