Document Type and Number:
Japanese Patent JPS5026510
Kind Code:
B2
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Application Number:
JP6913171A
Publication Date:
September 01, 1975
Filing Date:
September 06, 1971
Export Citation:
International Classes:
B21D3/10; B30B15/16; B30B15/22; B30B15/26; (IPC1-7): B21D3/10; B30B15/16