United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 166
W. C. RUNGE. APPARATOS FOR FORMING IMPRESSIONS ON PHONOGRAPH RECORD BLANKS AND LIKE ARTICLES. APPLICATION FILED APK.21, 1909, 1,018,631. Patented Feb. 27, 1912. 4 SHEETS-SHEET 2. ^ f ^^ … H^AnORHEYS COLUMBIA PLANOGRAPH CO.. WASHINGTON. D. C.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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