Tooth-hardening apparatus
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United States of America Patent
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May 21, 2013
Grant Date -
Nov 3, 2011
app pub date -
Jul 13, 2011
filing date -
Apr 21, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tooth-hardening apparatus according to the present invention includes a tooth-hardening member of a plate shape having a projection on its surface, and a nipple attached on the tooth-hardening member. The nipple has a predetermined hardness to provide a pacifier function and a tooth-hardening function. A space is formed in the tooth-hardening member. The space is covered with an upper transparent cover and a lower transparent cover.
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