Donald S. Oblak

Follow

Person

North St. Paul, MN, US

People

Patents Applicationslast 30 patents

Information Patent Application
Flat-Fold Respirator and Method of Making Same
- Publication number 20170311660
- Publication date Nov 2, 2017
- 3M Innovative Properties Company
- Jia Liang CHEN
- A41 - WEARING APPAREL
Information Patent Application
Flat-Fold Respirator And Method Of Making Same
- Publication number 20170303608
- Publication date Oct 26, 2017
- 3M Innovative Properties Company
- Jian Liang Chen
- A41 - WEARING APPAREL