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G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
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FR425438D1910-03-221911-01-31Appareil pour enregistrer et indiquer les excès de pression
ExpiredFR425438A
(fr)