Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means
Patent
1974-12-05
1976-06-29
Dier, Philip
Adhesive bonding and miscellaneous chemical manufacture
Differential fluid etching apparatus
With microwave gas energizing means
156257, 156268, 1563031, 427290, 428 46, 428 48, 156248, B32B 706, B32B 3118, B29D 300, B44D 132
Patent
active
039665321
ABSTRACT:
Water-color pictures having neat border edges rendering them suitable for framing are made by cutting a rectangular opening of a desired size through a ruled transparent plastic top sheet adhesively secured in removable fashion to a back sheet of water-color paper and removing the cut portion of the plastic sheet to provide a sight area within which a picture or the like may be colored. The remaining portion of the plastic sheet-framing the sight area prevents the watercolors from extending beyond the sight area, and upon completion of the coloring, the remaining portion of the plastic sheet is stripped from the back sheet, whereupon the back or mat sheet is then ready for framing and/or display.
REFERENCES:
patent: 1595581 (1926-08-01), Stedman
patent: 1845016 (1932-02-01), D'Atri
patent: 2876575 (1959-03-01), Leika
patent: 3002309 (1961-10-01), Snyder
patent: 3810812 (1974-05-01), Koenig
Dier Philip
Stephens Richard G.
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