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6 résultats pour : historical drilling rig

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Zumikon, drilling rig, geologist gives a speech; 1960
UMG25A20_259

Zumikon, drilling rig, geologist gives a speech; 1...

Nebikon, drilling, oil exploration, drilling rig; 1953
UMG25A20_057

Nebikon, drilling, oil exploration, drilling rig; ...

Zumikon, workers in the drilling rig; 1960
UMG25A20_240

Zumikon, workers in the drilling rig; 1960

Aigle, oil exploration; drilling rig assembly; 1959
UMG25A20_320

Aigle, oil exploration; drilling rig assembly; 195...

Potomac Gas & Fuel Company, drilling ca.  between 1918 and 1921
UMG22A13_155

Potomac Gas & Fuel Company, drilling ca. between ...

Mining
UMG21A12_296

Mining