METHOD FOR PASSING OPTICAL FIBER CABLE THROUGH SEWER PIPE AND OPTICAL FIBER CABLE PASSED BY THE METHOD

摘要

PROBLEM TO BE SOLVED: To pass an optical fiber cable through an existing sewer pipe.;SOLUTION: The method for passing an optical fiber cable between two points/buildings passes the cable through a sewer pipe directly or partially connecting the two points/buildings independently of the state of sewage flowing in the sewer pipe.;COPYRIGHT: (C)2002,JPO