United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 72
n of acutting recording-point and a blunt repro-ducing-poiut carried by the same diaphragmsubstantially as set forth. 37. In a phonograph, the combination, withthe swinging arm for holding the cylinder inplace, of the spring-lock for said arm, sub-stantially as set forth. This specification signed…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 72](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten02unit-72-29.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-595-384.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-751-489.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-493-283.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-177-109.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-1019-462.webp)
