A-Shen Chang

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Changhua Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Automatic and continuous mechanism for processing and assembling ve...
- Patent number 4,823,449
- Issue date Apr 25, 1989
- A-Shen Chang
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Length adjustable center rod structure for a vertical shutter drape
- Patent number 4,791,703
- Issue date Dec 20, 1988
- A-Shen Chang
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Vertical blinds
- Patent number 4,750,539
- Issue date Jun 14, 1988
- A-Shen Chang
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Semi-automatic shutter slat orientation adjustment and drape releas...
- Patent number 4,724,885
- Issue date Feb 16, 1988
- A-Shen Chang
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Method and apparatus for making slats for window blinds and the lik...
- Patent number 4,711,005
- Issue date Dec 8, 1987
- Joanna Western Mills Company
- A-Shen Chang
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Continuous mechanism for re-moulding, length-setting and assembling...
- Patent number 4,615,087
- Issue date Oct 7, 1986
- A-Shen Chang
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS