Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361049 | Transition from double-ridge waveguide to suspended substrate | David Rubin | 1994-11-01 |
| 4902992 | Millimeter-wave multiplexers | David Rubin | 1990-02-20 |
| 4570555 | Drive device for a two-threaded chain-stitch buttonhole sewing machine | Eberhard Kastrup, Heinz-Rolf Oberschelp | 1986-02-18 |
| 4534304 | Stitch correction method and apparatus for a sewing machine | — | 1985-08-13 |
| 4363281 | Sewing-machine system for continuously monitoring workpiece thickness | — | 1982-12-14 |
| 4276837 | Welt feeder for sewing machines | Kurt Biermann | 1981-07-07 |