An item for testing keenness of vision and refraction in any area where ordinary lighting facilities are available.
Classification: Other ophthalmic instruments and appliances and parts and accessories
NSN 5935-00-036-3948
NSN 5950-01-452-0730
NSN 6650-00-569-1762
NSN 6685-00-052-7378
NSN 5985-01-275-0328
NSN 4140-01-241-2197
NSN 5925-01-026-0891
NSN 6220-01-519-9305
NSN 5975-00-583-8625
NSN 5855-00-198-3197
NSN 5950-01-611-0377
NSN 5999-01-432-6483