Document Type and Number:
Japanese Patent JPH0231993
Kind Code:
U
Application Number:
JP11061888U
Publication Date:
February 28, 1990
Filing Date:
August 25, 1988
Export Citation:
International Classes:
F16L35/00; F16L41/02; (IPC1-7): F16L41/02; F16L41/02; F16L35/00
Domestic Patent References:
| JPS6225397B2 | 1987-06-02 |
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