...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7426843 | Roll assembly for a pipe extrusion plant A roll assembly and a pipe extrusion plant for producing pipes with a variable diameter, includes an extruder, an adjustable calibration device, and a cooling device, whereby a pipe to be produced is guided at least in part during the production process. In order to... | 09/23/2008 |
| 7340930 | Method for securing a machine tool and opto-electronic sensor for carrying out such a method The invention relates to a method for securing a machine tool comprising a first tool part that carries out work movements in the direction of a second tool part in order thereby to carry out a machining process on a workpiece, wherein an optoelectronic sensor monit... | 03/11/2008 |
| 6389860 | Control system for a press brake A press brake machine has a movable ram, a fixed bed, a drive for moving the ram toward and away from the bed, and a control system which controls movement of the ram. The control system includes an emitter which emits a beam of light and a detector assem... | 05/21/2002 |
| 4773284 | Apparatus for constructing tools Apparatus for constructing a press knife for cutting out sheet material such as leather, wherein machine instructions are generated containing data relating to a desired configuration of the press knife for cutting out a particular profile, the machine in... | 09/27/1988 |
| 4736585 | Hydrostatic machine An adjustable hydrostatic machine is connected to a pressure line with impressed system pressure. The pressure difference applied at the machine is set at a control valve so that the stroke volume of the machine in idling operation is set to an adjustment... | 04/12/1988 |
| 4562754 | Methods for constructing cutting tools Method for constructing a press knife for cutting out sheet material such as leather, wherein machine instructions are generated containing data relating to a desired configuration of the press knife for cutting out a particular profile, the machine instr... | 01/07/1986 |
| 4281528 | Process for isothermally shaping a titanium-containing metal workpiece There is provided an improved process for isothermal shaping of a titanium-containing workpiece in a hot die. A precoat lubricant composition including a glassy component and a solid lubricant such as graphite dispersed in an organic medium is applied to ... | 08/04/1981 |
| 4197757 | Method and apparatus for the cold forming of metal A method and apparatus for the cold forming of a metal billet into a desired geometrical configuration including the steps of feeding the billet into a die cavity while the cavity is open, closing one end of the die cavity with the billet confined therein... | 04/15/1980 |
| 4161110 | Automatic control device for a bending machine The invention relates to an automatic control device for a bending machine for use in the production of loops of bar or wire material for concrete reinforcement. The device includes a preselector for preselecting the type of loop required and determines t... | 07/17/1979 |