David E. Purcel

Follow

Person

Elyria, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic float assembly
- Patent number 5,743,137
- Issue date Apr 28, 1998
- Clark-Reliance Corporation
- David E. Brown
- G01 - MEASURING TESTING
Information Patent Grant
Fluid indicator assemblies for sight flow apparatus
- Patent number 5,343,826
- Issue date Sep 6, 1994
- Clark-Reliance Corporation
- David E. Brown
- G01 - MEASURING TESTING
Information Patent Grant
Sanitary sight indicator
- Patent number 5,297,429
- Issue date Mar 29, 1994
- Clark-Reliance Corporation
- David E. Brown
- G02 - OPTICS
Information Patent Grant
Sight flow apparatus with cartridge
- Patent number 5,249,464
- Issue date Oct 5, 1993
- Clark-Reliance Corporation
- David E. Brown
- G01 - MEASURING TESTING
Information Patent Grant
Tubular sanitary sight indicator
- Patent number 5,243,929
- Issue date Sep 14, 1993
- Clark-Reliance Corporation
- David E. Brown
- G02 - OPTICS