United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 597
ch consists in placing astencil over said matrix with an opening insaid stencil, exposing a portion of the re-corded surface of said matrix and deposit-ing a metal on said exposed surface. In witness whereof I have hereunto setmy hand this 2nd day of May A. D. 1908. JAMES W. OWEN.Witnesses: Alston… … r\Q 2
Phonograph · Patents
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