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Publication of JPS4960779ApublicationCriticalpatent/JPS4960779A/ja
Publication of JPS5243703B2publicationCriticalpatent/JPS5243703B2/ja
G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
