4. Boring or penetrating the earth
  5. Means traveling with tool to constrain tool to bore along...
  6. Sectional guide or shaft having means to lock sections in...

Preussag Aktiengesellschaft

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Apparatus for charging a hermetically sealed electrical energy s

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent

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Deep well pump

Pumps – Changeable by assembly or disassembly
Patent

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Device for collecting manganese nodules on the ocean floor

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
Patent

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Device for steering a drilling tool and/or drill string

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...
Patent

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Fluid pressure measuring apparatus for incorporation into a pipe

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Profile ID: LFUS-PAI-P-197997

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