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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0832811 (1977-09-12) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 21 인용 특허 : 1 |
A service connection between a water main and a meter within a building has a service conduit within a leakage conduit. The leakage conduit has a sealed connection with a casing sealed to the main and enclosing a corporation stop to which the service conduit is connected. The leakage conduit is seal
Apparatus for use in installing a second flexible subterranean member with a first flexible member already extending underground between two openings, said apparatus comprising a flexible wedge including a flexible connector, means at the ends of said connector connectable to an end of said first fl
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