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公开(公告)号：US3410948A
公开(公告)日：1968-11-12
申请号：US66786467
申请日：1967-09-14
Applicant: VICTOR COMPANY OF JAPAN
Inventor： KAZUO ISHIBASHI , HIROSHI OGAWA
IPC: G10H1/08
CPC classification number: G10H1/08
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