Document Type and Number:
Japanese Patent JPS5549883
Kind Code:
U
Application Number:
JP13339278U
Publication Date:
April 01, 1980
Filing Date:
September 28, 1978
Export Citation:
International Classes:
B21J13/14; B21K1/44; B21K1/64; B21K27/00; (IPC1-7): B21K27/00; B21K1/44; B21K1/64
Domestic Patent References:
| JP45012475A | ||||
| JPS49134562A | 1974-12-25 |