-
公开(公告)号:US820949A
公开(公告)日:1906-05-22
申请号:US1905283252
申请日:1905-10-18
Applicant: BELL CHESTER A
Inventor: BELL CHESTER A
CPC classification number: E05Y2201/434
公开(公告)号:US820949A
公开(公告)日:1906-05-22
申请号:US1905283252
申请日:1905-10-18
Applicant: BELL CHESTER A
Inventor: BELL CHESTER A
CPC classification number: E05Y2201/434