Document Type and Number:
Japanese Patent JPS57200346
Kind Code:
U
Application Number:
JP8596481U
Publication Date:
December 20, 1982
Filing Date:
June 11, 1981
Export Citation:
International Classes:
F04B13/00; B22C9/12; (IPC1-7): B22C9/12
Domestic Patent References:
| JPS5519492A | 1980-02-12 | |||
| JP50157501B |