Patents for inventions. (Class 75 (ii), Period 1916-20)
Lamp chimneys, globes, lenses, shades, reflectors, and smut-catchers, and holders therefor
Abridgments Specifications
1926
68 pages
Article (Journal)
English
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Lamp chimneys, globes, lenses, shades, reflectors, and smut-catchers, and holders therefor
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