Document Type and Number:
Japanese Patent JPS4417610
Kind Code:
Y1
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Application Number:
JP9977467U
Publication Date:
July 30, 1969
Filing Date:
November 29, 1967
Export Citation:
International Classes:
B22D18/06; C21C7/10; C22B9/04; (IPC1-7): C22B9/04; B22D27/16