Title:
【考案の名称】排気系中空二重管の間隔保持装置
Document Type and Number:
Japanese Patent JPS5825612
Kind Code:
U
Inventors:
Fukuda Masuo
Application Number:
JP11919781U
Publication Date:
February 18, 1983
Filing Date:
August 11, 1981
Export Citation:
International Classes:
F01N13/08; F16L7/00; F16L9/18; (IPC1-7): F01N7/08; F16L7/00; F16L9/18
Domestic Patent References:
| JPS5523349A | 1980-02-19 |
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