J
J. W. Urquhart
9 works on record
Works
Electro-typing
Electro-typing
1881
Electro-plating
Electro-plating
1880
Electric light
Electric light
1880
Electric light fitting
Electric light fitting
Steel thermal treatment
Steel thermal treatment
Electric ship-lighting
Electric ship-lighting
Electric light, its production and use
Electric light, its production and use
Dynamo construction
Dynamo construction
Sewing Machinery
Sewing Machinery