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Priority claimed from FI670064Aexternal-prioritypatent/FI45694C/fi
Application filed by E RosengrenfiledCriticalE Rosengren
Publication of SE332916BpublicationCriticalpatent/SE332916B/xx
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems