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

Hans B. Van Nederveen

E - Fixed Constructions – 21 – B

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Method for producing an improved layer particular for a...

B - Operations – Transporting – 22 – F
Patent

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Process for applying a dense layer of hard alloys or cermets...

C - Chemistry – Metallurgy – 23 – D
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Process for the manufacture of a drill head having...

B - Operations – Transporting – 23 – P
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Rock bit assembly

E - Fixed Constructions – 21 – B
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Roller bit

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-104786

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