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Closure system
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Patent number 5,576,526
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Issue date Nov 19, 1996
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Schulte-Schlagbaum Aktiengesellschaft
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Armin Eisermann
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Magnetic card lock with key card
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Patent number 5,339,661
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Issue date Aug 23, 1994
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Schulte-Schlagbaum Aktiengesellschaft
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Armin Eisermann
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Coding device for magnetic cards
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Patent number 5,264,685
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Issue date Nov 23, 1993
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Schulte-Schlagbaum Aktiengesellschaft
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Armin Eisermann
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G06 - COMPUTING CALCULATING COUNTING
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Burglarproof lock
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Patent number 4,987,758
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Issue date Jan 29, 1991
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Schulte-Schlagbaum Aktiengesellschaft
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Armin Eisermann
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Use-control system
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Patent number 4,727,975
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Issue date Mar 1, 1988
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Schulte-Schlagbaum Aktiengesellschaft
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Armin Eisermann
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G07 - CHECKING-DEVICES
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Flexible strip key
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Patent number 4,658,612
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Issue date Apr 21, 1987
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Schulte-Schlagbaum Aktiengesellschaft
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Armin Eisermann
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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