Description
Phrenology
Bringing Art to Innovation and Innovation to Art
Phrenology

Blood Pressure Manometer
2 patents – construction improvement for less breakage and better accuracy, second has a mercury reservoir and glass measuring tube.

Xray Tube

Bunsen Burner

Aspirin
Felix Hoffman's patent on his refinement of the formulation that Charles Frederic Gerhardt tried but gave up on.

Insulin

Mortar and Pestle

Ophthalmoscope (for examining eyes)
2 patents – 1 one for a new and improved version, 1 for a battery dry handle.

Infant Incubator

Respirator

Medical Prints Triple Framed (shown in black but also available in bronze)

Phoropter (for eye testing)
Invented by Henry DeZeng, who also trademarked the word Phoropter – a word that is now used for visual testers.

Stethoscope
First USA patent on the stethoscope – for a concealed noiseless spring that eliminated vibrations.

Bausch and Lomb Microscope
First Bausch & Lomb microscope. Both witnessed the patent document. Print includes these signatures.

Dentist Chair
2 patents – 1 for the design of chair, 1 for the cup holder for spittoon.