Etchant composition

Compositions – Etching or brightening compositions – Inorganic acid containing

Patent

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Details

156656, 1566591, 156664, 252 792, C23F 102, B44C 122, C03C 1500, C03C 2506

Patent

active

047253754

ABSTRACT:
An etchant composition comprising

REFERENCES:
patent: 4113486 (1978-09-01), Sato
patent: 4556449 (1985-12-01), Nelson

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