China (Mainland) A Multi-layer Hollow Block

Specifications: A multi-layer hollow block is the portion of my whole patent with apply no.:99107530.7. Which Was approved on nov.27 2002. The expired date for protection is on 2019-05-27. It can be made for toys or craft works with colorful inner layers and transparent outside layer.

Each layer is made by injected plastic and got integrity shape without hiring glue. Each inner layer is trapped in the next outer layer and the i . I am searching for an investor to make it or take over whole patent. I do not produce it by myself.