Title:
【考案の名称】円筒状保護管
Document Type and Number:
Japanese Patent JPS58118394
Kind Code:
U
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Inventors:
Nishiyama Itsu
Application Number:
JP1605482U
Publication Date:
August 12, 1983
Filing Date:
February 08, 1982
Export Citation:
International Classes:
F16L57/00; F24D3/00; F24D3/16; F28F1/00; F28F9/00; (IPC1-7): F16L57/00; F24D3/00; F28F9/00