Inventor
TORITANI KATSUMI
JP3 patents
Patents
3 patentsUS5572766ANov 12, 1996
In-duct cleaning apparatus
ATAKA CONSTRUCTION & ENG23 citations89
US5317782AJun 7, 1994
System for cleaning an inside surface of a duct
ATAKA CONSTRUCTION & ENG31 citations89
US5311641AMay 17, 1994
Apparatus for determining any contamination of dust, etc., in a duct prior to cleaning the duct
ATAKA CONSTRUCTION & ENG35 citations89