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ate: the master switch
Published in: Public Lighting Engineer No. 31, Vol. 8, October-December 1943
Published in: Public Lighting Engineer No. 32, Vol. 9, January-March 1944
Published in: Public Lighting Engineer No. 33, Vol. 9, April-June 1944
Published in: Public Lighting Engineer No. 35, Vol. 9, October-December 1944
Published in: Public Lighting Engineer No. 36, Vol. 10, January-March 1945
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