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B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
B44C1/22—Removing surface-material, e.g. by engraving, by etching
B44C1/227—Removing surface-material, e.g. by engraving, by etching by etching
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FR635046D1927-05-251927-05-25Perfectionnement aux procédés permettant d'effectuer par corrosion des dessins à jour dans des plaques de métal
ExpiredFR635046A
(fr)
Perfectionnements au procédé et aux moyens pour fabriquer, par laminage d'une bande de métal, des sections en forme de gouttière ou autres sections analogues