John Caleb Wells Biggers

Follow

Person

Yandina, QLD 4561, AU

People

Patents Grantslast 30 patents

Information Patent Grant
Valve sealing means
- Patent number 6,880,804
- Issue date Apr 19, 2005
- John Caleb Wells Biggers
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...