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公开(公告)号：US1070310A
公开(公告)日：1913-08-12
申请号：US1909527098
申请日：1909-11-09
Applicant: WESTON ELECTRICAL INSTR COMPANY
Inventor： WESTON EDWARD
CPC classification number: G01R1/08
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公开(公告)号：US1070311A
公开(公告)日：1913-08-12
申请号：US1913752588
申请日：1913-03-07
Applicant: WESTON ELECTRICAL INSTR COMPANY
Inventor： WESTON EDWARD
CPC classification number: G01R1/08
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