发明授权
- 专利标题: Machine for manufacturing prepared roofing
- 专利标题(中): 机械制造准备屋顶
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申请号: US9147226申请日: 1926-03-01
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公开(公告)号: US1794719A公开(公告)日: 1931-03-03
- 发明人: ROBERT MACLEAN
- 申请人: AMALGAMATED ROOFING COMPANY
- 专利权人: Amalgamated Roofing Company
- 当前专利权人: Amalgamated Roofing Company
- 优先权: US9147226 1926-03-01
- 主分类号: D06N5/00
- IPC分类号: D06N5/00
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