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公开(公告)号:US3293929A
公开(公告)日:1966-12-27
申请号:US35909464
申请日:1964-04-13
Applicant: STONE WALLWORK LTD
Inventor: ALFRED BOOTH
IPC: F16H9/16 , F16H61/662
公开(公告)号:US3293929A
公开(公告)日:1966-12-27
申请号:US35909464
申请日:1964-04-13
Applicant: STONE WALLWORK LTD
Inventor: ALFRED BOOTH
IPC: F16H9/16 , F16H61/662