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HAPPE BARBARA
DE
3 patents
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US8602047B2
Dec 10, 2013
Gas regulator fitting
HAPPE BARBARA
4 citations
57
US9157636B2
Oct 13, 2015
Gas regulating fitting
HAPPE BARBARA
0 citations
37
US8668490B2
Mar 11, 2014
Method and arrangement for igniting a gas flow
HAPPE BARBARA
0 citations
37