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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5246850
Kind Code:
Y2
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Application Number:
JP8929574U
Publication Date:
October 24, 1977
Filing Date:
July 25, 1974
Export Citation:
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International Classes:
E04H4/00; E04H4/12; (IPC1-7): E04H3/20