Chin-Der Chang

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5944212	Container capable of being evacuated by rotating a cap member thereof	—	1999-08-31
5931715	Swinging mechanism for a toy to simulate tail movement of an aquatic animal	—	1999-08-03
4626164	Robot with improved transmission system	—	1986-12-02