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

Roland Keller

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Anchoring element

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

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Bell-armature coil

Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate

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Brake

Brakes – Vehicle – Hub or disk
Reexamination Certificate

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Brush system with a suppression board

Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate

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Hydraulically actuated sliding-caliper disc brake

Brakes – Elements – Cooling and lubricating
Patent

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Profile ID: LFUS-PAI-P-1379480

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