4. Pipe joints or couplings
  5. With assembly means or feature
  6. Guide and support

Peter Wollenhaupt

Inventor

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Hydraulic connecting device

Pipe joints or couplings – With assembly means or feature – Guide and support
Patent

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Pick system for mining ploughs, in particular coal ploughs

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Planar type bit mount
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1952259

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