United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 483
ther arm. In testimony whereof I affix my signaturein presence of two witnesses. EDWARD C. WALTER. Witnesses: Thomas C. Adamson,David J. Oliver. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. SOUHD REPRODUCING OR RECORDING… … %* P8 h* ^m m Lo \nr r ? GefsryeJL Underh IU. THE NORRIS PETERS CO . PHOTC-LITHO., WASHINGTON. D C. UNITED STATES PATENT OFFICE. GEORGE H. UNDERHILL, OF BOSTON, MASSACHUSETTS,SOUND REPRODUCING OR RECORDING MACHINE. 1,141,672. Specification of Letters Patent. Patented June 1,1915. Original…
Phonograph · Patents
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