Holman & Stern
Apparatus for keeping a spare car key in a fuel tank cap
 This invention relates to an apparatus for keeping a spare key in the car. Only when the numbers of the revolving rings are set to the predetermined numbers, a spare key can be taken out because the cap of the apparatus is released from an inlet of the fuel tank. Although a driver has lost his car key or locks the door with his key being left in the car or he does not have a key, he can drive his car by utilization of a spare key which is installed under the fuel tank cap. In case his secret number for the spare key is known to others, he can easily change the number to a new number. And accordingly, although the number for his spare key is disclosed to others, an immediate change of the number prevents his car from being stolen. 
Y E E B E Y Y
Y10T E05B E05B B60K E05B Y10T Y10T
additional additional inventional inventional additional additional additional
Jung Wook
Kim