| 4659059 |
Sealed dashpot mechanism for delayed closing plumbing valves |
Theodore J. Sally, Ron T. Hahn |
1987-04-21 |
| 4580300 |
Combined wall construction form and plumbing fixture mounting device for fire rated wall construction |
V. Walter Hafner, Theodore J. Sally |
1986-04-08 |
| 4571901 |
Vandal-resistant security view port |
V. Walter Hafner |
1986-02-25 |
| D281714 |
Tamper-proof lavatory and toilet unit |
V. Walter Hafner, Theodore J. Sally |
1985-12-10 |
| 4512241 |
Plenum/vacuum chamber with duct connection for installation in cabinet of fixture to control air supply or return |
V. Walter Hafner |
1985-04-23 |
| 4505189 |
Vandal-resistant and tamper-proof plenum or vacuum chamber security air flow adjustment device |
V. Walter Hafner |
1985-03-19 |
| 4492430 |
Security mirror replaceable from pipe chase |
V. Walter Hafner, Ron T. Hahn |
1985-01-08 |
| 4480163 |
Vandal-resistant push button electrical switch assembly |
Walter V. Hafner, Ron T. Hahn |
1984-10-30 |
| 4462123 |
Fabricated floor drain with large stepped flange for elastomeric trowelled covering |
V. Walter Hafner |
1984-07-31 |
| 4453202 |
Vandal-resistant light fixture |
Ron T. Hahn, Theodore J. Sally |
1984-06-05 |
| 4434516 |
Wall sleeve and installation jig for multiple adjacent fixture mounting |
V. Walter Hafner |
1984-03-06 |
| 4423527 |
Fabricated floor drain with combination anchoring and seepage control flange |
V. Walter Hafner |
1984-01-03 |
| 4203173 |
Overflow inhibitor for plumbing fixtures |
Walter V. Hafner, Theodore J. Sally |
1980-05-20 |
| 4195374 |
Plumbing fixture overflow limiter |
Walter V. Hafner, Theodore J. Sally |
1980-04-01 |
| 4184702 |
Waste drain coupling for plumbing fixtures |
— |
1980-01-22 |