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公开(公告)号：US2962452A
公开(公告)日：1960-11-29
申请号：US66511057
申请日：1957-06-12
Applicant: GEN MOTORS CORP
Inventor： EDWARD COUNTS WILLIAM , WORTH SMITH ROBERT , KARL SCHWARTZWALDER
IPC: C04B35/478 , H01B1/08 , H01C7/00
CPC classification number: C04B35/478 , H01B1/08 , H01C7/001
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