Document Type and Number:
Japanese Patent JPS63171780
Kind Code:
U
More Like This:
Application Number:
JP6502687U
Publication Date:
November 08, 1988
Filing Date:
April 28, 1987
Export Citation:
International Classes:
F16L9/19; F28F9/00; F28F9/013; F28F21/06; (IPC1-7): F16L9/19; F28F9/00; F28F21/06
Domestic Patent References:
JPS495711B1 | 1974-02-08 |