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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5253590
Kind Code:
U
Application Number:
JP13966775U
Publication Date:
April 16, 1977
Filing Date:
October 14, 1975
Export Citation:
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International Classes:
E04H6/42; E04H6/06; (IPC1-7): E04H6/06
Domestic Patent References:
JPS4985765A1974-08-16
Foreign References:
US2846088A1958-08-05