David Laventure

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Manchester, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Sealing membrane and method of sealing
- Patent number 5,749,195
- Issue date May 12, 1998
- David Laventure
- E04 - BUILDING
Information Patent Grant
Duster extension tube system with dust collecting region and tube c...
- Patent number 5,503,333
- Issue date Apr 2, 1996
- David Laventure
- B08 - CLEANING
Information Patent Grant
Method of using a duster extension tube system with tube cleaner
- Patent number 5,427,624
- Issue date Jun 27, 1995
- David Laventure
- B08 - CLEANING