AVI – P0152
Generator Engine
AVI – P0153
Electric Model
AVI – P0154
Auxanometer Arc (Small)
AVI – P0155
Auxanometer Electric
AVI – P0156
Visking Tube
AVI – P0157
Wind Wane
AVI-P0156.1 Big Size
AVI-P0156.2 Small Size (Ordinary)
AVI – P0158
Photosynthesis Apparatus
AVI – P0159
Thermopile