United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 411
£rt/tT3- ^h>-t%/< Inventor THE NOmmiS PCTXW3 CO., WASHINGTON O. C. UNITED STATES PATENT OFFICE. ALEXANDER N. PIERMAN, OF NEWARK, NEW JERSEY, ASSIGNOR TO NEWJERSEY PATENT COMPANY, OF WEST ORANGE, NEW JERSEY, A COR-PORATION OF NEW JERSEY. FRICTIONAL REPRODUCING ATTACHMENT FOR PHONOGRAPHS. 10 15…
Phonograph · Patents
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