Charles Joseph Walworth

Follow

Person

Pinconning, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Rising-plug plug valve
- Patent number 3,948,284
- Issue date Apr 6, 1976
- The Dow Chemical Company
- Charles Joseph Walworth
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...