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n5freepatentsonline.
Subject Item
isa:50201441
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As a liquid under pressure, particularly water and froth generating agent, is fed through the nipple 58 (FIG. 7) by a jet of liquid passing through the axial holes 64, 63, 62, 61, air is ejected to flow through the nipple 59, annular groove 66 and tangential holes 65 (FIG. 8) to the hole 63 for mixing the liquid and air.
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isap:155504793
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isa:50201441