Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D639143 | Dual faced interlocking support member | Richard F. Schaefer, David Kreutzman | 2011-06-07 |
| D639144 | Four faced interlocking support member | Richard F. Schaefer, David Kreutzman | 2011-06-07 |
| D636656 | Single jaw interlocking support post | Richard F. Schaefer, David Kreutzman | 2011-04-26 |