CHORNYIÆS SCREW
A screw has blades and nave, in which they are fixed. Along outside diameter the screw is equipped with a rim, to which external blade tips are fixed.
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A screw has blades and nave, in which they are fixed. Along outside diameter the screw is equipped with a rim, to which external blade tips are fixed. |
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