4. Hydraulic and earth engineering
  5. Earth treatment or control
  6. Rock or earth bolt or anchor

Erich Richartz

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Corrosion-protected tension member of steel

Joints and connections – Member deformed in situ – By separate – deformable element
Reexamination Certificate

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Hot-rolled steel bar with helically extending ribs, method of an

Metal deforming – By use of 'flying tool' engaging moving work – Included in plural deforming stations or passes
Patent

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Method for manufacturing rolled steel products

Metal treatment – Compositions – Heat treating
Patent

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Method of producing an intended breaking point in a tension memb

Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Patent

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Profile ID: LFUS-PAI-P-530899

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