Search Results for: Animals fats chemically modified
etchant (class / ) etching to produce porous or perforated article (class / ) gas phase and nongaseous phase etching on the same substrate (class / ) gas phase etching of substrate (class / ) with measuring, testing, or inspecting (class / ) irradiating, ion implanting, alloying, diffusing, or chemically
layers of the substrate (class / ) etching vapor produced by evaporation, boiling, or sublimation (class / ) etching inorganic substrate (class / ) nongaseous phase etching of substrate (class / ) with measuring, testing, or inspecting (class / ) irradiating, ion implanting, alloying, diffusing, or chemically...
https://patents.justia.com/patents-by-us-classification/216