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BPH PATENT HOLDING AG
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ZUG 6300, CH
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Patents Grants
last 30 patents
Information
Patent Grant
Automatic relief valve
Patent number
5,033,504
Issue date
Jul 23, 1991
BPH Patent Holding AG
Dieter H. F. Kallenbach
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Swimming pool cleaner
Patent number
5,014,382
Issue date
May 14, 1991
BPH Patent Holding AG
Dieter H. F. Kallenbach
E04 - BUILDING
Information
Patent Grant
Pool cleaner accessory
Patent number
4,982,754
Issue date
Jan 8, 1991
BPH Patent Holding AG
Dieter H. F. Kallenbach
E04 - BUILDING
Information
Patent Grant
Pool cleaner component
Patent number
4,949,419
Issue date
Aug 21, 1990
BPH Patent Holding AG
Dieter H. F. Kallenbach
E04 - BUILDING
Patents Applications
last 30 patents
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last 30 trademarks