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STEVENSON INDUSTRIES, INC.
| STEVENSON INDUSTRIES, INC. Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110114099 | RESPIRATORY SHIELD - In an embodiment, a respiratory shield is disclosed. The respiratory shield is sized to be coupled with a respiratory device having a nasal air intake member so as to be positioned along an oral airflow axis. | 05-19-2011 |