-
1.
公开(公告)号:US1168264A
公开(公告)日:1916-01-11
申请号:US2015215
申请日:1915-04-09
Applicant: EMERSON PIANO COMPANY
Inventor: JAMESON ALEXANDER
CPC classification number: G10B1/04 , Y10T74/20888
公开(公告)号:US1168264A
公开(公告)日:1916-01-11
申请号:US2015215
申请日:1915-04-09
Applicant: EMERSON PIANO COMPANY
Inventor: JAMESON ALEXANDER
CPC classification number: G10B1/04 , Y10T74/20888