IC 009. US 021 023 026 036 038. G & S: Electric locking and opening devices for windows, doors and gates, the aforesaid goods made of metal, plastic, glass or combinations of these materials
IC 019. US 001 012 033 050. G & S: Doors, windows, gates, glazing frames and prefabricated parts thereof; ventilation installations, namely skylights, air slots, ventilation flaps and ventilation sliders for windows, doors and facades, all aforementioned goods made of plastic, wood,glass or combinations of these materials
IC 037. US 100 103 106. G & S: Installation and assembly of automatic drives for doors, repair and maintenance of machines tools and automatically driven doors and gates as well as ventilation appliances
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