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Title: Surveying altimeter, American, 1854-1870 [Go to resource]
Description: Surveying altimeter No 1, invented by Hall Colby, New York, United States, 1854-1870 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: surveying altimeter Temporal: 1854-1870 Source: Science Museum Creator: Hall Colby (maker) Identifier: 1984-2 Go to resource More Like this...
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