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DE3244896A1
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Transport magazine
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DE3144385A1
|
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Double socket
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DE2949465A1
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Flanged connection for oil prodn. well mouth - has stuffing glands between riser, lining and conductor string
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DE2949048A1
|
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Steam injection riser insulation - with insulating material in sealed annulus formed by protective outer tube
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DE2658431A1
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Hydraulic workover device or well boring - has rotary table attached to tubular frame between hydraulic cylinders
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CA966709A
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Ground surfaces
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DE1279584B
|
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Process for pre-degassing coal fats
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DE1119527B
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Flow rate measuring device, especially for drilling fluids
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