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BEIJING ZBSD PATENT & TRADEMARK AGENT LTD.
| BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20090263623 | SCRIBBLING SUBSTRATE - The present invention relates to a substrate for scribbling. The substrate is a scribbling board. The substrate is made of a rigid and ductile metal material and is provided at least with a first and a second surface. The first surface is attached to a scribbling layer. The present invention has simple construction to replace the prior art complex scribbling substrate, thereby greatly saving manufacturing costs with better industrial benefits. | 10-22-2009 |