Jan Czyzewski

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Krakow, PL

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Patents Applicationslast 30 patents

Information Patent Application
Indicator of Presence of Ac Voltage
- Publication number 20080198277
- Publication date Aug 21, 2008
- Jan Czyzewski
- G01 - MEASURING TESTING
Information Patent Application
Liquid-crystal indicator of voltage presence
- Publication number 20060238688
- Publication date Oct 26, 2006
- Jan Czyzewski
- G01 - MEASURING TESTING
Information Patent Application
Passive indicator of voltage presence
- Publication number 20060164068
- Publication date Jul 27, 2006
- Jan Czyzewski
- G01 - MEASURING TESTING