United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 937
*C~ J. i3<U*t. THE NORRIS PETERS CO., WASHINGTON. D. C. No. 852,760. PATENTED MAY 7, 1907. L. I. BLAKE.RECEIVER FOR SYSTEMS OF SUBMARINE SIGNALING. APPLIOATIOH FILED JAF. 29, 1907. 2 8HEET8-SHEET B. Fig, 3 … cC J. BiU^ cJmmvtor mi to«»js rirltn Co, w*j*l«OTO». a c. UNITED STATES PATENT OFFICE. LUCIEN I. BLAKE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO SUBMARINESIGNAL COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OFMAINE. RECEIVER FOR SYSTEMS OF SUBMARINE SIGNALING. No. 852,760. Specification of Letters…
Phonograph · Patents
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