Document Type and Number:
Japanese Patent JPH02122186
Kind Code:
U
Application Number:
JP3165089U
Publication Date:
October 05, 1990
Filing Date:
March 20, 1989
Export Citation:
International Classes:
F04B13/02; F04B43/04; F04B45/04; F04B45/047; (IPC1-7): F04B43/04; F04B13/02; F04B45/04
Domestic Patent References:
| JPS4726405U | 1972-11-25 |