Note 54 — Front matter (continued 3)
Reading edition
See the Electrical Review, Vol. XLIV., 1899, May 26; Wied Ann., Vol. LXVIII., p. 92; or German Patent Specification No. 107,843.
Reading edition
See the Electrical Review, Vol. XLIV., 1899, May 26; Wied Ann., Vol. LXVIII., p. 92; or German Patent Specification No. 107,843.