3-dimensional models showing chemical point group symmetry

Amusement device

Antibody teaching aid

Apparatus and didactic method for teaching and showing primary o

Apparatus and method for demonstrating the efficacy of a...

Apparatus and method for displaying the flow of a solution in re

Apparatus and method for finding and identifying nighttime sky o

Apparatus and method for monitoring the validity of a...

Apparatus and method for monitoring the validity of a...

Apparatus for demonstrating and studying the operation of a fuel

Apparatus for demonstrating changes in motion with respect...

Apparatus for demonstrating geometrical and gravitational relati

Apparatus for demonstration of earth's rotation about the sun

Apparatus for detecting exchanges through the cut end of a plant

Apparatus for determining the acceleration of a moving object un

Apparatus for generating nonlinear dynamic chaotic motion

Apparatus for teaching electrochemical principles

Apparatus to review clinical microbiology

Artificial animal jaw

Artificial bird bodies for taxidermy