RA

Ryushi Aoyama

AC Abc Trading Co.: 1 patents #5 of 12Top 45%
Overall (All Time): #4,124,456 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4235608 Rotary-type counter-current heat exchanger Hiroshi Watanabe, Yasuhira Hironaka, Hanji Oana 1980-11-25