Trench excavators : steam and gasoline engine driven machines for excavating vertical wall trenches : back filler for refilling trenches : excavating machines for rapidly and automatically digging trenches of from approximately fifteen inches to seventy-eight inches in width and od all depths to twenty feet : back fillers for rapid refilling of excavated trenches : manufactured by The Parsons Company, Newton, Ohio.
| Typ dokumentu: | Kniha |
|---|---|
| Jazyk: |
angličtina |
| Vydavatel: |
New York :
Allied Machinery Company,
1920.
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