United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 919
LucienI.Blake, 3-wowriox/ THE W0**r$ PETERS CO., WASHINGTON, 0. C. UNITED STATES PATENT OFFICE. LUCIEX I. BLAKE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO SUBMA-RINE SIGNAL COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORA-TION OF MAINE. ART OF SUBMARINE SIGNALING. No. 852,648. Specification of Letters…
Phonograph · Patents
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