Waldemar Friedrich Thole

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Johannesburg, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for indicating the density of ballast
- Patent number 4,040,292
- Issue date Aug 9, 1977
- Franz Plasser Bahnbaumaschinen Industriegesellschaft m.b.H.
- Josef Theurer
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES