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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS53137529
Kind Code:
U
Application Number:
JP4207677U
Publication Date:
October 31, 1978
Filing Date:
April 06, 1977
Export Citation:
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International Classes:
E04F15/18; E04F15/20; (IPC1-7): E04F15/20
Domestic Patent References:
JPS3727853Y1