Breath breathalyzer alcohol schematic test breathalyser led tester detector Patents breathalyzer drawing Patent us7934577
Patent us6726636 Interlock patents ignition claims device alcohol Interlock ignition breathalyzer patents alcohol device breath claims
Patent us7934577 .
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Patent US6726636 - Breathalyzer with voice recognition - Google Patents
Patent US7934577 - Ignition interlock breathalyzer - Google Patents
Patent US7934577 - Ignition interlock breathalyzer - Google Patents