Document Type and Number:
Japanese Patent JPH03101701
Kind Code:
U
Application Number:
JP933690U
Publication Date:
October 23, 1991
Filing Date:
February 01, 1990
Export Citation:
International Classes:
E04B1/16; (IPC1-7): E04B1/16
Domestic Patent References:
| JPS5620414A | 1981-02-26 |