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Sumio Ando

Overall (All Time): #2,227,839 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6249927	Duct-cleaning unit	—	2001-06-26
4653134	Cleaning apparatus for raw material transfer pipe	—	1987-03-31