Document Type and Number:
Japanese Patent JPS57200676
Kind Code:
U
Application Number:
JP8846481U
Publication Date:
December 20, 1982
Filing Date:
June 16, 1981
Export Citation:
International Classes:
F04B13/00; (IPC1-7): F04B13/00
Domestic Patent References:
| JPS4826502B1 | 1973-08-11 |