|
2017
|
Invention
|
Multifunctional massage and lying-posture adjustment device. A multifunctional massage and lying-... |
|
2015
|
Invention
|
Elastic body with adjustable hardness and height and application thereof. Disclosed is an elastic... |
|
2013
|
Invention
|
Elasticity-adjustable corrugated cavity fluid pressure spring structure.
A compression spring wi... |
|
|
Invention
|
Elasticity-adjustable corrugated cavity fluid pressure spring structure. Disclosed is an elastici... |
|
|
Invention
|
Elasticity-adjustable nonlinear pressure spring unit.
A spring unit includes a compressive sprin... |
|
|
Invention
|
Elasticity-adjustable nonlinear pressure spring unit. An elasticity-adjustable nonlinear pressure... |
