WH

Walter V. Hafner

AE Acorn Engineering: 3 patents #19 of 42Top 50%
Overall (All Time): #1,682,380 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4480163 Vandal-resistant push button electrical switch assembly Earl L. Morris, Ron T. Hahn 1984-10-30
4203173 Overflow inhibitor for plumbing fixtures Earl L. Morris, Theodore J. Sally 1980-05-20
4195374 Plumbing fixture overflow limiter Earl L. Morris, Theodore J. Sally 1980-04-01