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Edison makes improvements to his phonograph invention...
Item # 619805
June 12, 1880
SCIENTIFIC AMERICAN, New York, June 12, 1880
* Thomas Alva Edison
* Phonograph invention
An inside page has a brief yet noteworthy report under: "Patent Office Items" reading: "Mr. Edison has just obtained a new patent for improvements on his original phonograph, by which the machine is made to speak to better advantage than ever before." (see)
The balance of the issue has a wealth of other articles with prints concerning the latest inventions & improvements of the day.
Sixteen pages, very nice, clean condition.
Category: Post-Civil War