首页>
外国专利>
Information and advertizing medium has disk or plate provided with recess in form of slot whose width corresponds to width of disk and disk can be designed in varying form and size
Information and advertizing medium has disk or plate provided with recess in form of slot whose width corresponds to width of disk and disk can be designed in varying form and size
The information and advertizing medium has a plate provided with a recess in form of slot whose width corresponds to width of disk. The disk can be designed in square, round, triangular, polygonal or in arbitrary form and size.
展开▼