Document Type and Number:
Japanese Patent JPS644882
Kind Code:
U
Application Number:
JP9843687U
Publication Date:
January 12, 1989
Filing Date:
June 29, 1987
Export Citation:
International Classes:
F04B45/02; (IPC1-7): F04B45/02
Domestic Patent References:
JPS58170866A | 1983-10-07 | |||
JPS4913526A | 1974-02-06 |
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