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AK
Atsuyoshi Katayama
DI
Disco
: 1 patents #384 of 708
Top 55%
Overall (All Time):
#2,826,808
of 4,157,543
Top 70%
1
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Patent #
Title
Co-Inventors
Date
10836014
Annular grinding stone
Takeshi Onodera
,
Yoshinori Yaguchi
2020-11-17
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