Document Type and Number:
Japanese Patent JPS4956435
Kind Code:
A
Application Number:
JP9819372A
Publication Date:
May 31, 1974
Filing Date:
September 29, 1972
Export Citation:
International Classes:
E04H9/16
Domestic Patent References:
| JPS4515313Y1 | 1970-06-26 | |||
| JPS4327306Y1 | 1968-11-12 |