David Clark, Headsets, models:

40992G-01	User Manual
DC PRO-X2 43105G-01	Quick Reference Manual
DC PRO-X2 Series	Quick Reference Manual
ENC	Owner'S Manual
H3310	Quick Start Manual
H3312	Quick Start Manual
H3313	Quick Start Manual
H3335	Use And Care Information
H3530	Use And Care Information
H6600i	Operating Instructions
H9130	Use And Care Information
H9140	Use And Care Information
H9140-HT	Operation Manual
H9910	Use And Care Information
H9930	Use And Care Information
H9935	Use And Care Information
H9940	Use And Care Information
HBT Series	Use And Care Information
HBT-30	Use And Care Information
HBT-60	Use And Care Information
U3813	Installation & Operation Instructions
U9910-BSW	User Manual
X11	Quick Reference Manual
dc onex	Quick Reference Manual