Richard N. Sullivan

Follow

Person

Portland, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Flushing, toilet tank-fed, primer valve for sewer line drain traps
- Patent number 4,574,399
- Issue date Mar 11, 1986
- Richard N. Sullivan
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Self-contained, automatic primer valve for sewer line drain traps
- Patent number 4,204,556
- Issue date May 27, 1980
- Precision Plumbing Products, Inc.
- Richard N. Sullivan
- E03 - WATER SUPPLY SEWERAGE