Photochemical machining, a process of fabricating sheet metal components using a photoresist and etchants to corrosively machine away selected areas
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Photoengraving, a process of engraving using photographic processing techniques
Thomas D. Milling | Photochemical machining | Milling | milling | Krause Milling Co. | Grinder (milling) | Edison Ore-Milling Company |