4. E - Fixed Constructions
  5. 21
  6. B

Johannes Witte

E - Fixed Constructions – 21 – B

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Inventor

Country: Germany

A method and apparatus for the underground ascertainment of...

E - Fixed Constructions – 21 – B
Patent

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Adjustable angle pipe joint

F - Mech Eng,Light,Heat,Weapons – 16 – L
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Integrated modular connector in a drill pipe

E - Fixed Constructions – 21 – B
Patent

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Mechanical jarring devices for use in drilling

E - Fixed Constructions – 21 – B
Patent

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Modular drilling apparatus with power and/or data transmission

E - Fixed Constructions – 21 – B
Patent

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Adjustable angle pipe joint

F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent

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Profile ID: LFCA-PAI-P-1182900

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