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公开(公告)号:US1425547A
公开(公告)日:1922-08-15
申请号:US45589921
申请日:1921-03-26
Applicant: RYAN JOHN A
Inventor: RYAN JOHN A
IPC: E05D13/00
CPC classification number: E05D13/10 , E05Y2201/654 , E05Y2600/46 , Y10T16/67
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公开(公告)号:US902331A
公开(公告)日:1908-10-27
申请号:US1908437124
申请日:1908-06-06
Applicant: RYAN JOHN A
Inventor: RYAN JOHN A
CPC classification number: E06C1/34
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公开(公告)号:US2031907A
公开(公告)日:1936-02-25
申请号:US1709535
申请日:1935-04-18
Applicant: RYAN JOHN A
Inventor: RYAN JOHN A
IPC: E06B3/50
CPC classification number: E06B3/5063 , E06B3/50
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4.Device for changing the tone of the string of alpha musical instrument 失效
Title translation: 改变阿尔法乐器弦乐器的装置公开(公告)号:US1883410A
公开(公告)日:1932-10-18
申请号:US54554731
申请日:1931-06-19
Applicant: RYAN JOHN A
Inventor: RYAN JOHN A
IPC: G10D3/14
CPC classification number: G10D3/143
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公开(公告)号:US1158298A
公开(公告)日:1915-10-26
申请号:US4029415
申请日:1915-07-16
Applicant: JAMES W ALDRIDGE , RYAN JOHN A
Inventor: RYAN JOHN A
CPC classification number: A63H5/00
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