| 4659059 |
Sealed dashpot mechanism for delayed closing plumbing valves |
Earl L. Morris, Ron T. Hahn |
1987-04-21 |
| 4630644 |
Dual operated metering valve connected to both a hand operated push button and a foot operated push button |
V. Walter Hafner, Ron T. Hahn, Keith Marshall |
1986-12-23 |
| 4580300 |
Combined wall construction form and plumbing fixture mounting device for fire rated wall construction |
Earl L. Morris, V. Walter Hafner |
1986-04-08 |
| D281714 |
Tamper-proof lavatory and toilet unit |
Earl L. Morris, V. Walter Hafner |
1985-12-10 |
| 4453202 |
Vandal-resistant light fixture |
Earl L. Morris, Ron T. Hahn |
1984-06-05 |
| 4203173 |
Overflow inhibitor for plumbing fixtures |
Earl L. Morris, Walter V. Hafner |
1980-05-20 |
| 4195374 |
Plumbing fixture overflow limiter |
Earl L. Morris, Walter V. Hafner |
1980-04-01 |