Joseph D. Zeren

Follow

Person

Boulder, CO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Critically safe vacuum pickup for use in wet or dry cleanup of radi...
- Patent number 5,301,388
- Issue date Apr 12, 1994
- Joseph D. Zeren
- B08 - CLEANING
Information Patent Grant
Critically safe volume vacuum pickup for use in wet or dry cleanup...
- Patent number 5,273,561
- Issue date Dec 28, 1993
- Joseph D. Zeren
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...