Document Type and Number:
Japanese Patent JPS5028370
Kind Code:
B2
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Application Number:
JP6572071A
Publication Date:
September 13, 1975
Filing Date:
August 27, 1971
Export Citation:
International Classes:
B22C7/00; B22C9/00; B22C9/03; B22C21/00; B22C21/01; (IPC1-7): B22C21/00; B22C9/00