Browse Items (138 total)

4.tif

2.tiff

5.tif

1.jpg

Jacob S. Walsh (inventor)
3.tif

H. Hartman (inventor)
popularsciencemo90newyuoft_raw_0658-Copia.jpg

Jhon B. Flower (inventor)
popularsciencemo91newyuoft_raw_0696.pdf_page_158.jpg

Alphonse Fernandez (inventor)
Electrical Experimenter 1916-05.jpg

3.jpg

1.jpg

Hugo Gernsback (inventor)
Output Formats

atom, dc-rdf, dcmes-xml, json, omeka-xml, rss2