TEACHING UTEUSIL OF MULTI-DIRECTION JOINT-DISPOSITION IN THREE-DIMENSION

The utility model provides a teaching uteusil of multi-direction joint-disposition in three-dimension. The utility model is characterized in that multipurpose joints with reasonable disposition are provided. Eight joints are needed, a small quantity of accessories such as joint rods are added, more...

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Bibliographic Details
Main Author LIU ZUGEN
Format Patent
LanguageEnglish
Published 13.04.1988
Edition4
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
PHYSICS
PLANETARIA
SEALS
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