Bottle mouth top surface polishing apparatus
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United States of America Patent
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-
Dec 8, 1992
Grant Date -
N/A
app pub date -
Apr 22, 1991
filing date -
Apr 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bottle mouth top surface polishing apparatus including rotating machine having a rotary shaft, a rotary plate means coupled at its center to the rotary shaft, a grinding plate fixed to the rotary plate and having a grinding face which is to be made in contact with a bottle mouth top surface to be polished, and a contact adjusting device for making the contact between the grinding face and the bottle mouth top surface always close over whole contact surfaces thereof upon polishing.
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