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Ludwig Max

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Featured researches published by Ludwig Max.

Archive | 1994

Chip card reader with multicore cable detector at entry slot - prevents complete closure of slot and switching of data reading and processing circuitry for card inserted with fraudulent wiring

Brandstetter Alfred; Dauer Hermann; Gahl Andreas; Ludwig Max

Archive | 1985

Payment device for automatic pay units

Ludwig Max; Schwandt Werner

Archive | 1983

Coin distributor for coin cassettes

Ludwig Max; Gahl Andereas

Archive | 1977

Drilling prevention plate for telephone lock - had freely rotatable plate carried on front of cylinder lock to cover spring

Ludwig Max; Kreim Hermann

Archive | 1992

Fraudulent call prevention method for multifrequency-dialling telephone station - delaying activation of microphone while called number is identified as not on exclusion list

Ludwig Max

Archive | 1977

Lock fastener for coin operated telephone - has covering nut or plate and mounting bracket preventing lock forcing

Ludwig Max; Kreim Hermann

Archive | 1986

Method for testing coins for their weight and for limiting the maximum filling quantity of the coins which have entered the coin-guide channel in self-service machines

Ludwig Max; Sooth Juergen

Archive | 1985

Coin guide for coin-operated machines

Gahl Andreas; Ludwig Max

Archive | 1985

Two-part telephone station with a receptacle pivotably disposed on a baseplate

Gahl Andreas; Ludwig Max

Archive | 1984

Stationary telephone station with a receptacle for the operating devices which is detachably mounted on a baseplate

Ludwig Max; Schwandt Werner

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Gahl Andreas

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Schwandt Werner

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Ihring Alfred

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Sooth Juergen

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Brandstetter Alfred

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Kreim Hermann

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Gahl Adreas

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Gahl Andereas

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Goerlitz Hans Dipl Ing

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