𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The photophone and the conversion of radiant energy into sound

✍ Scribed by Preece, W.H.


Book ID
114460034
Publisher
Institution of Electrical Engineers
Year
1880
Weight
67 KB
Volume
9
Category
Article
ISSN
2054-0698

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