United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 38
J€€nry T.JCom (No Model.) No. 463,989, 2 Sheets—Sheet 2. H. T. HOLTZ. PHONOGRAPH. Patented Nov. 24, 1891. … /6 P. /Su^M QM<yiA\<^v United States Patent Office« IIEKRY T. IIOLTZ, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OFONE-IIALF TO WILLIAM MAURICE LERCII, OF BALTIMORE, MARYLAND. PHONOGRAPH. SPECIFICATION forming part of Letters Patent No. 463,989, dated November 24, 1891. Application filed…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 38](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten02unit-38-14.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-39-6.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-125-38.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-367-251.webp)
