Induction Coil machine

138 Years old Shocker Elfering, John H. [Chicago, IL, USA]

Induction Coil machine © 1888 Elfering [John H. Elfering].

TECHNICAL / MACHINE PICT.

Machine Picture
(members only)

TRIVIA

Released in October 1888.

Patented on August 27, 1889 (U.S. Patent No 409,738).

STAFF

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Invented & Patented by : John H. Elfering

SOURCES

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Machine's picture.