Handheld operation device
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United States of America Patent
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Jun 23, 2015
Grant Date -
Oct 2, 2014
app pub date -
Mar 31, 2013
filing date -
Mar 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A handheld operation device includes a casing, a plurality of counterweight blocks and a counterweight module. The counterweight module is disposed on the casing. The counterweight module includes a base and a block plate. The block plate covers the base. One of the base and the block plate is capable of rotating with respect to the casing. The base has a plurality of accommodating recesses. The block plate has a broken hole formed thereon. One of the accommodating recesses is exposed in the broken hole such that one of the counterweight blocks is capable of passing through the broken hole and then being disposed in the accommodating recess.
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