Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886336 | Storage device for a spare length of at least one optical fibre | Detlef M. Boehm, Johann A. Becker | 1989-12-12 |
| 4859020 | Branching circuit for an optical cable comprising a plurality of optical waveguides and a method of producing same | Detlef M. Boehm, Karl Eiden, Johann A. Becker | 1989-08-22 |