Physics
J11 Force
J12 Heat or Energy or Wave
J13 Electrical or Magnet
J14 Light or Solar
J15 Sound
J16 Fluid or Gasses
J17 Energy Conversion Model
J18 Tools
J19 Measuring
J19A Balances
Chemictry
J21 Chemical Lab Tools
J22 Lab Glass Ware
J23 Model
J24 Lab Plastic Ware
J25 Lab Porcelain Ware
J26 Filter Paper
Biology
J31 Biological Tools
J32 Human Model
J33 Animal Model Skeleton
J34 Animal Plant Model
J35 Prepared Slide
J36 Relief Model
J3C1 Skeleton Models
J3C1 Skull Skeleton
J3C1 Spine Models
J3C1 Skeletal Extremities
J3C1 Joint Models
J3C1 Pelvis Models
J3C2 Torso Series
J3C3 Anatomical Series
J3C3 Anatomical Model-Brain
J3C4 Medical Teaching Series
J3C5 Acupuncture Series
J3C7 Plant Series
J37 Low Speed Centrifuge
J37 Mini centrifuge
J37 High Speed Centrifuge
Geography and Astronomy
J41 Tools
J42Model and Rock Specimen
Astronomy
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Mathematics
J51 Pre-School
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J51.20.01 Rulers
