Ratchet screwdriver with an accelerating structure
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United States of America Patent
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Jul 6, 2010
Grant Date -
Jan 28, 2010
app pub date -
Jul 24, 2008
filing date -
Jul 24, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A ratchet screwdriver with an accelerating structure is provided, in particular to one combined a ratchet seat and a solar gear system. The ratchet seat controls the operating direction, and the solar gear system increases the output rpm for a user to choose high or low revolution to facilitate tightness or looseness of a screw.
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