FIELD: mechanical engineering, namely key and lock production, and other industries, namely wrench and nut, particularly color marked means, production.
SUBSTANCE: key has contact part to be in contact with device. Contact visible part of the device and contact part of the key have the same color and are fluorescent. The fluorescent matter marks out edges of key hole or projection adapted for key installation.
EFFECT: simplified key usage, reduced time, increased operational reliability, service life and key quality, decreased key production costs and extended product mix.
| Title | Year | Author | Number |
|---|---|---|---|
| KEY | 1997 |
|
RU2126077C1 |
| TACK | 1998 |
|
RU2144475C1 |
| ICE-CREAM | 1999 |
|
RU2177230C2 |
| COIN | 2005 |
|
RU2301006C1 |
| DEVICE FOR INFORMATION COMMUNICATION | 1997 |
|
RU2131620C1 |
| WRENCH | 2007 |
|
RU2347673C1 |
| NEEDLE | 1997 |
|
RU2135661C1 |
| BUTTON | 1997 |
|
RU2121924C1 |
| COIN | 1998 |
|
RU2128933C1 |
| STAMP | 1999 |
|
RU2142652C1 |
