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| Patents for A01B 77 - Machines for lifting and treating soil (522) |
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| 08/28/1990 | US4951417 Method of contaminated soil remediation and apparatus therefor | | 10/18/1989 | CN1005447B Ploughing device and its method | | 10/17/1989 | US4873789 Soil sterilizer | | 12/07/1988 | CN87101338A Soil-improving method for renewal of water quality | | 11/08/1988 | US4782625 Method of contaminated soil remediation and apparatus therefor | | 10/06/1988 | DE3710283A1 Apparatus for extracting and removing contaminated earth | | 09/28/1988 | CN87214837U Bait-throwing machine for killing mouse | | 12/30/1987 | CN86104045A Ploughing device and its method | | 04/09/1987 | DE3535775A1 Processing device | | 01/22/1985 | US4494611 Apparatus for processing soil for planting | | 11/29/1983 | US4417627 Apparatus for breaking rock located in a field | | 05/10/1983 | CA1146004A1 Apparatus and method for cultivating land | | 12/14/1982 | US4363725 Apparatus for removing gravel from excavated soil | | 08/24/1982 | US4345531 Apparatus and method for cultivating land | | 04/28/1982 | EP0050218A1 Implement for breaking stones, especially in soils used for agricultural purposes | | 08/22/1978 | CA1037011A1 Mobile stone crushing machine | | 04/05/1977 | US4015667 Cotton stalk and root shredder with re-bedder | | 02/01/1977 | US4005755 Machine for rock removal and soil cultivation | | 12/21/1976 | US3998276 Plow and earth fragmentation machine | | 10/05/1976 | US3983942 Plowing, soil refiner and weed or other plantings separator machine | | 09/14/1976 | US3980029 Grass growing | | 06/22/1976 | US3964719 Mobile stone crushing plant |
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