Dental hygiene teaching apparatus or the like
Dental patient simulator
Design for educational and/or therapeutic game set or similar ar
Design for educational and/or therapeutic game set or similar ar
Design for educational and/or therapeutic game set or similar ar
Design for educational and/or therapeutic game set or similar ar
Device for teaching shoe orientation and measuring feet
Devotional and learning device
Devotional and learning device
Devotional and learning device
Dial for world time zones
Didactic toy for mathematics
Didactic toy set
Digital systems lab
Digital/analog teaching clock
Display device for illustrating scientific codes, and correspond
Display model of an assembly of engine parts
Display surface of the drug effect on brain capillary blood flow
DNA model
DNA model