首页>
外国专利>
Auxiliary means for securing the position of the glass sheets or plates in the fold in the case of still soft cement and simple process for the laying of disks in rabbets with the use of the auxiliary and subsequent cementing
Auxiliary means for securing the position of the glass sheets or plates in the fold in the case of still soft cement and simple process for the laying of disks in rabbets with the use of the auxiliary and subsequent cementing