SHENG-CHUNG LIAO
Engineers in Murrysville, PA

License number
Pennsylvania PE031629E
Category
Engineers
Type
Professional Engineer
Address
Address
Murrysville, PA 15668
LicenseFiles verified this license of Apr 24, 2017 at the Pennsylvania Licensing System.

Professional information

Sheng-Chung Liao Photo 1

Dust Filtering Respirator

US Patent:
D271432, Nov 15, 1983
Filed:
Jun 24, 1981
Appl. No.:
6/277062
Inventors:
Sheng-Chung Liao - Murrysville PA
John W. Neidhart - Monroeville PA
Assignee:
Mine Safety Appliances Company - Pittsburgh PA
International Classification:
D2902
US Classification:
D29 7

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