Document Type and Number:
Japanese Patent JPS52708
Kind Code:
U
Application Number:
JP8771075U
Publication Date:
January 06, 1977
Filing Date:
June 21, 1975
Export Citation:
International Classes:
F04B33/00; (IPC1-7): F04B33/00
Domestic Patent References:
| JPS4312522Y1 | 1968-05-29 |
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