4. Optics: image projectors
  5. Stereoscopic

Walter Meier

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Branch separating filter

Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent

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Connection device for a screened cable

Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent

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Continuous casting apparatus with pour tube having lateral slot-

Metal founding – Means to shape metallic material – Pressure shaping means
Patent

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Device and method for mechanical cleaning of grooves

Brushing – scrubbing – and general cleaning – Implements
Reexamination Certificate

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Device and method for mechanical cleaning of grooves

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Reexamination Certificate

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Profile ID: LFUS-PAI-P-462795

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