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| Number | Title | Issue Date |
| 7328807 | Method and device for classifying fine particles The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; an... | 02/12/2008 |
| 5740868 | Pressure control circuit for a combination of a reversible plough with a plurality of soil preparation devices coupled therewith A combination of a reversible plough with a plurality of soil preparation devices including an improved height control system. The apparatus includes a headstock by means of which the combination can be mounted on lifting arms at the rear of a propelling ... | 04/21/1998 |
| 5590722 | Combination of a reversible plough and seed preparation device A combination of a semi-mounted reversible plough (10) and a seed preparation device (11) are towed behind a tractor in order to carry out a ploughing action and a seed preparation action during a single pass over the ground. The plough has a short leadin... | 01/07/1997 |
| 5280826 | Coulter adjusting device for reversible plow A coulter adjusting device for use in a reversible plowing machine having a non-reversible mast frame, a bottom frame secured to the non-reversible mast frame in such a manner as to be rotatable or reversible relative to the non-reversible mast frame, a r... | 01/25/1994 |
| 5172769 | Reversible tillage attachment for bidirectional mold board plow A tiller attachment for switchable bidirectional mold board plow which is adapted to be mounted onto the tool bar of the plow. The attachment includes a pair of axially spaced apart frame members which support arms joined at a right angles at a pivot poin... | 12/22/1992 |
