Handheld magnifier
Handheld still/video camera
Handheld thermal imager
Handheld video camera
Handle for a magnifier
Handle for a magnifier
Handle for a magnifier
Handle for a magnifier
Handle for a magnifier
Handle for a magnifying glass
Handle for illuminating magnifier
Handle for magnifier lens
Hanger for eyeglasses or the like
Head band with lenses
Head band with optical lenses
Head encircling sensory deprivation pillow
Head for an overhead projector
Head gear mount for night vision goggles
Head mounted display system
Head to rapidly orient optical or photographic apparatus and...