A method of producing by means of electrotyping process (without etching) copperplates which can be printed from in the same manner as engraved plates.
The art or process of depositing metals by electricity; electrotypy.
galvanothermy
hydroaviation
hydroaviation
noun
The part of aviation dealing with seaplanes and floatplanes.
hydrogalvanic
hydrogalvanic
adj
Pertaining to, produced by, or consisting of, electricity evolved by the action or use of fluids.
