Document Type and Number:
Japanese Patent JPH02104109
Kind Code:
U
Application Number:
JP1162089U
Publication Date:
August 20, 1990
Filing Date:
February 01, 1989
Export Citation:
International Classes:
B21C25/02; B21C29/04; (IPC1-7): B21C29/04; B21C25/02
Domestic Patent References:
| JPS5430667A | 1979-03-07 |