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Edouard Rau ( -1912)
1912 Obituary 
EDOUARD RAU was for thirty-five years a well-known civil engineer at Brussels, and invented various devices in connection with railway signalling and telegraphs, and previous to joining the Institution in 1877 had written a book on telegraphy and one on electric fire-alarms.
He died on 7th February, 1912.