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Home › Etching solutions containing ammonium fluoride and a nonionic alkyl amine glycidol adduct and method of etching

Etching solutions containing ammonium fluoride and a nonionic alkyl amine glycidol adduct and method of etching

US Patent 4863563 · Granted Sep 5, 1989

Estimated economic value: $5,828,000 ⓘ

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