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UV lamp
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Patent number 11,517,638
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Issue date Dec 6, 2022
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LED IBOND INTERNATIONAL A/S
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Lars Frederiksen
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F21 - LIGHTING
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Electrical supply system
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Patent number 10,535,967
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Issue date Jan 14, 2020
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LED IBOND INTERNATIONAL APS
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Lars Frederiksen
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F21 - LIGHTING
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-
-
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Silencer
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Patent number 7,159,692
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Issue date Jan 9, 2007
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Silentor Holding A/S
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Svend Frederiksen
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Silencer
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Patent number 6,312,650
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Issue date Nov 6, 2001
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Silentor Holding A/S
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Svend Frederiksen
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Silencer with incorporated catalyst
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Patent number 6,220,021
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Issue date Apr 24, 2001
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Silentor Notox A/S
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Svend Frederiksen
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Silencer
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Patent number 5,758,497
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Issue date Jun 2, 1998
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Silentor A/S
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Svend Frederiksen
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES