David Carl Drummond

Follow

Person

Truro, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Positive pressure liquid transfer and removal system configured for...
- Patent number 7,793,801
- Issue date Sep 14, 2010
- David Carl Drummond
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information Patent Grant
Mobile load support
- Patent number 7,213,820
- Issue date May 8, 2007
- David Carl Drummond
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Retractable wheel and track covers
- Patent number 7,185,920
- Issue date Mar 6, 2007
- David Carl Drummond
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Positive pressure liquid transfer and removal system configured for...
- Publication number 20090179049
- Publication date Jul 16, 2009
- David Carl Drummond
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...