Inventor
SHIBABUCHI TOSHIO
JP4 patents
Patents
4 patentsUS5375889ADec 27, 1994
Electrofusion joint and hot water supply header using the same
OSAKA GAS CO LTD67 citations94
US5366253ANov 22, 1994
Electrofusion joint and hot water supply header using the same
OSAKA GAS CO LTD46 citations94
US5150922ASep 29, 1992
Electrofusion joint and hot water supply header using the same
OSAKA GAS CO LTD72 citations94
US4674775AJun 23, 1987
Coupling for corrugated conduit
OSAKA GAS CO LTD81 citations92