Engineering Laboratories Inc., Tulsa

---

Size: 1400px × 1783px
Photo credit: © PSF Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., ancient, bygone, employees, engineering, engineeringlaboratoriesincorporated, historic, history, laboratories, men, oklahoma, seismographs, seismography, smu, tulsa, vintage, workers