Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D258983 | Elbow fitting | Bernard J. Gallagher, Erling G. Wennerstrom, Mark R. Houdek | 1981-04-21 |
| D258077 | Blank for an elbow fitting | Bernard J. Gallagher, Erling G. Wennerstrom, Mark R. Houdek | 1981-01-27 |
| D258078 | Elbow fitting | Bernard J. Gallagher, Erling G. Wennerstrom, Mark R. Houdek | 1981-01-27 |
| D258002 | Blank for an elbow fitting | Bernard J. Gallagher, Erling G. Wennerstrom, Mark R. Houdek | 1981-01-20 |
| D258003 | Elbow fitting | Bernard J. Gallagher, Erling G. Wennerstrom, Mark R. Houdek | 1981-01-20 |