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| Number | Title | Issue Date |
| 4557244 | Method of machine cutting silicon metal particulates with Si3 N4 A method is disclosed of machine cutting a semidense silicon comprising particulate body by relatively moving a substantially fully dense silicon nitride cutting tool against the body. The silicon nitride tool experiences increased tool life over that of ... | 12/10/1985 |
| 4484559 | Apparatus for removing material such as concrete from underwater pipelines Apparatus for removing covering material from underwater pipelines. A frame of the apparatus is clampingly engaged to the pipeline. A plurality of pipeline material cutters are cantileverly supported beyond the clamp to provide a plurality of cutting pass... | 11/27/1984 |
| 4439657 | Apparatus for high temperature treatment of rectilinear-generatrix surfaces of nonconductive products Disclosed is an apparatus for high temperature treatment of rectilinear-generatrix surfaces of nonconductive products. The apparatus comprises an anode arranged opposite to a cathode to provide an arc gap therebetween for striking an arc discharge. The ap... | 03/27/1984 |
| 4425059 | Process for removing a concrete covering The invention concerns the removal of a concrete covering applied to an underlying surface provided with an anti-corrosion coating, for example that of a hydrocarbon-conveying pipe. The coating is removed by making trenches in the concrete to divide it into ... | 01/10/1984 |
| 4327703 | Method of preparing concrete column for attachment to beam A method of preparing the upper end of a concrete column containing elongated reinforcing elements for connection to a cast-in-place beam supported by the column. The method comprises the steps of determining the elevation at which the column is to engage... | 05/04/1982 |
| 4177789 | Method for the production of slabs of marble or similar stony material Thin sections of marble or like stone are made by sawing of a block to produce preliminary slabs which are held together, either by integral bridging portions, bonded base portions, or external shoring, while a spacer material, for example resin, is intro... | 12/11/1979 |
| 4020317 | Method of mining rock with an electron beam A method of mining rock utilizes a high-intensity electron beam to break the rock. The electron beam is directed onto the surface of the rock, and has sufficient energy either to ablate the rock at the zone of beam impingement and generate an ablation pre... | 04/26/1977 |
| 3954096 | Method of working, forming and finishing single crystals Method of working, forming, and finishing single crystals which are able to sublimate. The single crystal is acted upon by an instrument the temperature of which is the same or higher than the temperature at which the single crystal sublimates.... | 05/04/1976 |
