-
公开(公告)号:US1032786A
公开(公告)日:1912-07-16
申请号:US1908463692
申请日:1908-11-20
Applicant: ROLLER SMITH COMPANY
Inventor: SHIRE HARRY I , BEAN HORACE D
CPC classification number: G01R5/04
公开(公告)号:US1032786A
公开(公告)日:1912-07-16
申请号:US1908463692
申请日:1908-11-20
Applicant: ROLLER SMITH COMPANY
Inventor: SHIRE HARRY I , BEAN HORACE D
CPC classification number: G01R5/04