HU906303D0 - Venturi-tube diffusing to the air, working without external energy sources, mountable on the water changing apparatus of aquariums
- Google Patents
Venturi-tube diffusing to the air, working without external energy sources, mountable on the water changing apparatus of aquariums
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Publication number
HU906303D0
HU906303D0HU630390AHU630390AHU906303D0HU 906303 D0HU906303 D0HU 906303D0HU 630390 AHU630390 AHU 630390AHU 630390 AHU630390 AHU 630390AHU 906303 D0HU906303 D0HU 906303D0
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Application filed by Gusztav ManningerfiledCriticalGusztav Manninger
Priority to HU630390ApriorityCriticalpatent/HU906303D0/en
Publication of HU906303D0publicationCriticalpatent/HU906303D0/en
HU630390A1990-10-021990-10-02Venturi-tube diffusing to the air, working without external energy sources, mountable on the water changing apparatus of aquariums
HU906303D0
(en)