| 摘要 |
PROBLEM TO BE SOLVED: To extend the service life of a battery by eliminating the wasteful lighting of a lamp in the light for saving energy. SOLUTION: This power tool comprises a trigger switch for driving a motor and the on/off light operated in connection with the ON/OFF operation of the trigger switch. A light switch is installed to turn on the light for the operations in the dark and turn off the light in the light. When the light is turned off, the light is not turned on even if the trigger switch is operated. COPYRIGHT: (C)2009,JPO&INPIT
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