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RAILWAY APPARATUS AT THE PARIS ELECTRICAL EXHIBITION: Annunciator Apparatus, FRANCE, 1882
LZT13A36_325

RAILWAY APPARATUS AT THE PARIS ELECTRICAL EXHIBITI...

RAILWAY APPARATUS AT THE PARIS ELECTRICAL EXHIBITION: Fig. 1. Lartigue's Switch Controller. Fig. 2.
LZT13A36_327

RAILWAY APPARATUS AT THE PARIS ELECTRICAL EXHIBITI...