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Photogrammetry aids Pennsylvania Turnpike
When completed, Pennsylvania Turnpike will total more than 750 mi; original section was studied entirely by ground survey methods, since 1947 all mapping for extensions has been done by aerial photogrammetric methods; advantages.
Photogrammetry aids Pennsylvania Turnpike
When completed, Pennsylvania Turnpike will total more than 750 mi; original section was studied entirely by ground survey methods, since 1947 all mapping for extensions has been done by aerial photogrammetric methods; advantages.
Photogrammetry aids Pennsylvania Turnpike
Am Soc Civ Engrs -- Proc Separate
Gilbert, G.B. (author)
1954
4 pages
Article (Journal)
English
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Engineering Index Backfile | 1940
|Engineering Index Backfile | 1940
|Engineering Index Backfile | 1939
|Engineering Index Backfile | 1939
|Bridging Pennsylvania turnpike
Engineering Index Backfile | 1940
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