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公开(公告)号:US1048539A
公开(公告)日:1912-12-31
申请号:US1912708147
申请日:1912-07-08
Applicant: ROLAND COLE E , HUNTER CHARLES
Inventor: HUNTER CHARLES
CPC classification number: F16B39/32
公开(公告)号:US1048539A
公开(公告)日:1912-12-31
申请号:US1912708147
申请日:1912-07-08
Applicant: ROLAND COLE E , HUNTER CHARLES
Inventor: HUNTER CHARLES
CPC classification number: F16B39/32