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F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16N—LUBRICATING
F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
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FR690854D1930-03-011930-03-01
For a device for controlling and measuring the flow rates of oil pipes or other pressurized fluids
ExpiredFR690854A
(en)
Improvements made to devices for measuring the section or flow rate of orifices by the pressure drop undergone by a fluid flowing through these orifices