What is Artificer?

Legal Definition
Persons whose employment or business consists chiefly of bodily labor. Those who are masters of their arts. Cunn. Dict. h. t. Vide drt.
-- Bouviers Law Dictionary
Legal Definition
One who buys goods in order to reduce them, by his own art or industry, into other forms, and then to sell them. Lansdale v. Brashear, 3 T. B. Mon. (Ky.) 335. One who is actually and personally engaged or employed to do work of a mechanical or physical character, not Including one who takes contracts for labor to be performed by others. Ingram v. Barnes, 7 El. & Bl. 135; Chawner v. Cummings, 8 Q. B. 321. One who is master of his art, and whose employment consists chiefly in manual labor. Wharton; Cunningham.
-- Black's Law Dictionary
Legal Definition
A workman or mechanic as distinguished from an employer thereof.
-- Ballentine's Law Dictionary