4. Photography and optical equipment
  5. Projector or viewer
  6. With provision for transparency magazine

Ulrich Grote

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Method and system for tapping telephone conversations

Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate

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Microfilm-reader

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Profile ID: LFUS-PAI-P-709776

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