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

Alfred Ostertag

E - Fixed Constructions – 21 – B

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A skiving head and process for skiving cylinders and...

B - Operations – Transporting – 23 – B
Patent

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Break-out-unit

E - Fixed Constructions – 21 – B
Patent

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Directly driven coring tool

E - Fixed Constructions – 21 – B
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Double acting shock absorbers for drill strings

E - Fixed Constructions – 21 – B
Patent

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Expandable stabilizer

E - Fixed Constructions – 21 – B
Patent

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Expandable stabilizer

E - Fixed Constructions – 21 – B
Patent

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Profile ID: LFCA-PAI-P-184199

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