-
公开(公告)号:US1164743A
公开(公告)日:1915-12-21
申请号:US3875015
申请日:1915-07-08
CPC分类号: E05B85/22 , Y10S292/23 , Y10S292/31 , Y10S292/49 , Y10T70/5509 , Y10T292/0909 , Y10T292/0974 , Y10T292/1031 , Y10T292/552 , Y10T292/558 , Y10T292/702
公开(公告)号:US1164743A
公开(公告)日:1915-12-21
申请号:US3875015
申请日:1915-07-08
CPC分类号: E05B85/22 , Y10S292/23 , Y10S292/31 , Y10S292/49 , Y10T70/5509 , Y10T292/0909 , Y10T292/0974 , Y10T292/1031 , Y10T292/552 , Y10T292/558 , Y10T292/702