Drawings showing an infrared source produced and sold in the U.S. before the filing of the application by Nicolet Instrument Corp. on a product sold under the trademark "PRO-STAR". |
Drawings showing an infrared source manufactured and sold in the U.S. prior to the filing of the present application by Nicolet Instrument Corp. on a product sold under the trademark "PRO-IR". |
Drawings labeled "Explosion Proof Source" showing an infrared source manufactured and sold in the U.S. prior to the filing of the present application by the Foxboro Company. |