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Query:
engineering
1513 records — Page 74 of 127
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Volunteer firemen ready to run with the engine, Cathedral Square, Guayaquil. [Active no. 9...
The brotherhood of man--William H. Taft greeting the engineers of his train. [Caption no. ...
A mighty excavating engine at work in the canal bottom. 11523 Interpositive 1913.
Charles R. Pratt (Boston and Sprague Electric Elevator Company, New York City and Bloomfie...
US 1,474,911 (elevator equalizer) sketches
US 1,474,911 (elevator equalizer) correspondence and sketches
Charles R. Pratt
Section of Technological Collections: Annual Report, 1888-1889 [SIA_000158_B02_F16]
Photographs of plans, drawings, and model
Photographs of completed project, exterior
Photographs of completed project, interior
Letters and contract
1513 records — Page 74 of 127
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![Volunteer firemen ready to run with the engine, Cathedral Square, Guayaquil. [Active no. 9184 : stereo interpositive.]](/img/loading-large.gif)