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公开(公告)号：US3103640A
公开(公告)日：1963-09-10
申请号：US11812261
申请日：1961-06-19
Applicant: LAB FOR ELECTRONICS INC
Inventor： LOCKHART HARRY H
IPC: H03H9/38
CPC classification number: H03H9/38
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公开(公告)号：US3148343A
公开(公告)日：1964-09-08
申请号：US11393761
申请日：1961-05-31
Applicant: LAB FOR ELECTRONICS INC
Inventor： LOCKHART HARRY H
IPC: H03H9/38
CPC classification number: H03H9/38
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