Title:
【考案の名称】既設管を利用する2重管端シ-ル機構
Document Type and Number:
Japanese Patent JPS59110483
Kind Code:
U
Inventors:
Norio Shimizutani
Application Number:
JP421983U
Publication Date:
July 25, 1984
Filing Date:
January 18, 1983
Export Citation:
International Classes:
F16L1/00; F16L7/00; F16L55/18; (IPC1-7): F16L1/00; F16L7/00; F16L55/18
Domestic Patent References:
| JPS58113685A | 1983-07-06 |