[
洋図書
]
The manufacture of carbons for electric lighting and other purposes.
A practical handbook, giving a complete description of the art of making carbons, electrodes, &c., the various gas generators and furnaces used in carbon ising; with a plan for a model factory.
(
The Electrician series
)
By Francis Jehl. --
"The Electrician" printing and publishing co., limited --
[1899] --