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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4430324
Kind Code:
Y1
Application Number:
JP3113265U
Publication Date:
December 15, 1969
Filing Date:
April 21, 1965
Export Citation:
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International Classes:
E21D9/06; E21D9/08; (IPC1-7): E02D29/10; E21D9/08



 
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