547 XL

machines for the chemical machinery of work pieces, the making of printed circuits and the making of printing surfaces and engravings by etching and/or wet processing treatment; namely, cleaning, etching, rinsing, drying, conveying, transporting, spraying, developing, stripping, heating, chemical washing, etchant regenerating, material handling, finishing, scrubbing, inputting and outputting machines and systems comprised of any of the aforesaid machines