Document Type and Number:
Japanese Patent JPS4941821
Kind Code:
U
Application Number:
JP8292672U
Publication Date:
April 12, 1974
Filing Date:
July 13, 1972
Export Citation:
International Classes:
E04F19/02; (IPC1-7): E04F19/02
Domestic Patent References:
| JP12006779Y1 | ||||
| JPS345074Y1 |