Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4457107 | Push bar fitting to be introduced into a longitudinal groove of the frame of a window, door, or the like | — | 1984-07-03 |
| 4407105 | Multi-pane insulating glass and method for its production | — | 1983-10-04 |
| 4338996 | Combined rolling shutter and ventilating box | — | 1982-07-13 |