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G01G5/00—Weighing apparatus wherein the balancing is effected by fluid action
G01G5/02—Weighing apparatus wherein the balancing is effected by fluid action with a float or other member variably immersed in liquid
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FR400173D1909-02-041909-02-04
Device allowing to know at any time the quantity and, more particularly, the weight of liquid contained in the containers
ExpiredFR400173A
(en)
New hermetic closure system, allowing the liquid contained in a bottle to flow regularly outside, without it being possible to introduce into said bottle any similar liquid
Device for the preparation of mixtures of solid substances with liquids, and in particular mixtures of concrete or mortar containing a controlled quantity of liquid