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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
F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
F16N21/04—Nozzles for connection of lubricating equipment to nipples
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FR28329D1923-06-061923-06-06
Push-in coupling device for pressure lubrication
ExpiredFR28329E
(en)