Mechanical skeleton
United States Patent 2472819
US Patent References:
/0088432.html
- - 0088432

/0760943.html
- - 0760943

/0983547.html
- - 0983547

Educational device
- - 1494872

Anatomical skeleton
- - 2108229


Inventors:
Giesen, Josef H.
Publication Date:
06/14/1949
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Assignee:
Giesen, Josef H.
Primary Class:
434/274
Other Classes:
623/61, 623/54, 623/57, 623/33, 623/59, 623/39
International Classes:
G09B23/32; G09B23/00
Foreign References:
AT92522B
DE584903C