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| Number | Title | Issue Date |
| 5988964 | Drive-in dowel A drive-in dowel including an inner sleeve (2) having a load application element (3), a cone-shaped widening section (5) formed at a front, in a setting direction (S), end of the inner sleeve (2), and a substantially cylindrical support section (6) adjoin... | 11/23/1999 |
| 5975217 | Tool for drilling and/or chiseling A tool for drilling and/or chiseling has a striking mechanism (6) within a guide tube (9) for reciprocating a first piston (7) and, via an air cushion, for reciprocating a second piston (19) within the guide tube. The second piston drives a driving anvil ... | 11/02/1999 |
