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HT
Hitoshi Takei
SS
Sanwa Shutter
: 1 patents #17 of 45
Top 40%
Overall (All Time):
#3,877,558
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1
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Patent #
Title
Co-Inventors
Date
5020169
Elevation bed
Takeaki Hamada
,
Kiyoshi Abe
,
Kenji Sato
1991-06-04
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