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HU900251D0
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Water-softener, water-purifying and detergent-power increasing composition
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Paper block prodn. with glued side suitable for advertising print - has paper filler and fine cellulosic material in or on glue
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Container for storing small paper documents - is made from pad of paper mounted on curved support and opening out fanwise
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Printing of pictures on paper stack sides - is achieved by gluing stacks together and re-cutting to produce clean surface
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Folding sheet with transparent cover - used as diary or ruled notice pad with attached measuring scale
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Folding sheet for calendar - square shaped holes at folding line intersections, indentations at sheet edges
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METHOD AND DEVICE FOR SEPARATING AND RECOVERING A GAS FROM A GAS MIXTURE
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US2950543A
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Didactic apparatus
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