Document Type and Number:
Japanese Patent JPS49147664
Kind Code:
U
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Application Number:
JP4512973U
Publication Date:
December 20, 1974
Filing Date:
April 14, 1973
Export Citation:
International Classes:
F28F1/42; F16L59/00; F28F1/16; (IPC1-7): F28F1/16; F16L59/00
Domestic Patent References:
| JP43005349A |