FIELD: personal care items.
SUBSTANCE: in a pencil containing a graphite rod, set into a core with a tube fixed at one its end, gutters with optical fibers paved therein, LED and the battery mounted in the tube, gutters and the optic fibers are located near the core surface along a helix.
EFFECT: increased strength against longitudinal cracking due to reinforcement of the surface with optical fibers.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MICROPHONE | 2013 |
|
RU2524557C1 |
| MIXER | 2015 |
|
RU2611863C1 |
| MICROPHONE | 2013 |
|
RU2526300C1 |
| MICROPHONE | 2013 |
|
RU2524558C1 |
| MIXER | 2015 |
|
RU2611865C1 |
| MIKE CASE | 2014 |
|
RU2568040C1 |
| AERONAUTIC CRAFT | 2016 |
|
RU2643067C1 |
| MICROPHONE | 2013 |
|
RU2533932C1 |
| MIXER | 2015 |
|
RU2591298C1 |
| RIVET (VERSIONS) | 2016 |
|
RU2616892C1 |
