Document Type and Number:
Japanese Patent JPS50118721
Kind Code:
U
Application Number:
JP2830874U
Publication Date:
September 27, 1975
Filing Date:
March 13, 1974
Export Citation:
International Classes:
E04F11/02; (IPC1-7): E04F11/12
Domestic Patent References:
| JPS4831019B1 | 1973-09-26 | |||
| JPS4839657A | 1973-06-11 |