United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 171
lifying chamber, and a plu-rality of sound pipes supported by said shal-low chamber and in communication there-with disposed about said housing. HOWARD D. DARLINGTON. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.… … TTd-JSL.^ QnwAxiot, John Henry Phillips Jr »¥ -^^c^JLil^^^S Qttox^ui^ UNITED STATES PATENT OFFICE. JOHN HENBY PHILLIPS, JR., OP JACKSON, MICHIGAN. PHONOGRAPH 1,253,276. Specification of Letters Patent. Patented Jan. 15, 1918. Application filed August 11,1917. Serial No. 185,687. To all whom it may…
Phonograph · Patents
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