| 1968 EXXON Delay Line Ultrasonic Testing Instrument |
| 1968 BRANSON INSTR Ultrasonic Testing Art Print |
| 1968 LAB Ultrasonic Wave Directive Assembly Art |
| 1968 PHILIPS CORP Ultrasonic Radiation Art |
| 1968 FISHMAN Ultrasonic Pipet Rinser Patent 44316 |
| 1968 WESTINGHOUSE ELECTRIC CORP Ultrasonic Transmitter |
| 1968 JOSEPHUS Ultrasonic Radiation Device Patent |
| 1968 MAGNAFLUX CORP Piezoelectric Ultrasonic Transducer |
| 1968 FISHMAN Ultrasonic Pipet Washer Patent 44315 |
| 1968 KRAUSE Glass Bonding Medium Ultrasonic S |
| 1968 LOBDELL Ultrasonic Transducer With Absorptive Load |
| 1968 HARRIS Ultrasonic Testing Apparatus Patent |
| 1968 MIDLOCK Ultrasonic Wave Directive Assembly |
| 1968 BLACKSTONE CORP Ultrasonic Transducers Art |
| 1968 COLBERT Piezoelectric Ultrasonic Transducer |
| 1968 CROSS Delay Line Ultrasonic Testing Instrument |
| 1968 ANTONEVICH Ultrasonic Transducers Patent |
| 1968 BREWER Ultrasonic Hypersonic Sound Generator |
| 1968 SIENKIEWICZ Ultrasonic Transmitter Patent |
| 1968 BELL Glass Bonding Medium Ultrasonic S Art |
| 1968 HEWLETT Ultrasonic Transducer With Absorptive Load |