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公开(公告)号：US2433377A
公开(公告)日：1947-12-30
申请号：US51501643
申请日：1943-12-20
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor： LE GRAND JESSE S , LA BOSSIERE EDWARD
IPC: H03D3/08
CPC classification number: H03D3/08
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