sentences:  Having obtained his "Meister" certificate, he established his own small workshop near the municipal gasworks at Frankfurter Bahnhof in Berlin-Friedrichshain in 1843.While the City of Berlin continuously enlarged its gas network in order to supply the growing population, Pintsch received numerous repair orders by the public GASAG utility company.He achieved major success in 1847 with the development of a reliable gas meter that was applied by the city administration and would eventually be used worldwide.