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Lennart Karl Erik Jansson
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Varmdo, SE
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last 30 patents
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Patent Grant
System and an arrangement to determine the position in a hazardous...
Patent number
6,998,992
Issue date
Feb 14, 2006
Firefly AB
Lennart Karl Erik Jansson
G08 - SIGNALLING
Information
Patent Grant
System and an arrangement to determine the level of hazard in a haz...
Patent number
6,867,700
Issue date
Mar 15, 2005
Firefly AB
Lennart Karl Erik Jansson
G08 - SIGNALLING