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| Number | Title | Issue Date |
| 7278286 | Rolling die and a method of making a rod with a ball portion A rolling die is provided for forming a rod member with a ball portion. The rolling die includes a first die member and a second die member facing the first die member. Each of the first die member and the second die member has a process surface. The process surface... | 10/09/2007 |
| 7007533 | Rotating head The invention relates to a device called a rotating head which is used to deform the edge of the points or nibs of ball-point pens. The inventive device has two rotating rolls which are installed so that they can pivot freely in the rotating head. The rotating rolls... | 03/07/2006 |
| 5028228 | Apparatus for making dental root canal filling points An apparatus for making a dental root canal filling point is provided, wherein provision is made of a rotary member having its outer processing surface in the form of a curved plane in parallel with its axial direction and adapted to be rotated at a prede... | 07/02/1991 |
| 4870848 | Tapered rolled thread bar joint A machine and process for forming a high strength precision bar joint and more particularly for forming rolled tapered threads on a bar end such as the tapered end of a reinforcing bar used in concrete construction. Such machine and process employs oppose... | 10/03/1989 |
| 4819469 | Method for rolling tapered threads on bars A machine and process for forming a high strength precision bar joint and more particularly for forming rolled tapered threads on a bar end such as the tapered end of a reinforcing bar used in concrete construction. Such machine and process employs oppose... | 04/11/1989 |
