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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5137860
Kind Code:
Y2
Application Number:
JP10734172U
Publication Date:
September 17, 1976
Filing Date:
September 14, 1972
Export Citation:
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International Classes:
E01F9/553; E01F9/00; E01F9/559; (IPC1-7): E01F9/00