Document Type and Number:
Japanese Patent JPH03129848
Kind Code:
U
Application Number:
JP3768790U
Publication Date:
December 26, 1991
Filing Date:
April 10, 1990
Export Citation:
International Classes:
E04B1/70; F24F13/068; F24F13/08; (IPC1-7): F24F13/068; E04B1/70; F24F13/08
Domestic Patent References:
| JPH0213935B2 | 1990-04-05 | |||
| JPS4740428A |