F17B 1/26

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9410559 Energy-accumulation apparatusJan 29, 14Aug 09, 16HYDROSTOR INC.
8863571 Filling level meter for membrane gasometersMay 20, 10Oct 21, 14Ecomembrane SRL
4902304 Separate low pressure gas storage systemJan 21, 88Feb 20, 90Envirex Inc.