发明授权 US109077A Improvement in machines for laying channels in boots and shoes 失效 基本信息 请登陆查看更多内容 基本信息 请登陆查看更多内容 Improvement in machines for laying channels in boots and shoes 专利标题: Improvement in machines for laying channels in boots and shoes 申请号: US109077D 申请日: 公开(公告)号: US109077A 公开(公告)日: 1870-11-08 信息查询 Espacenet