Education and demonstration – Science
Patent
1986-02-20
1987-03-31
Grieb, William H.
Education and demonstration
Science
446491, G09B 2338
Patent
active
046540113
ABSTRACT:
Flower and leaf like objects are elevated by mechanical means from open ended tubes that are arranged within a non-transparent enclosure such that the non-transparent enclosure is a base to a transparent enclosure into which the flower and leaf like objects are elevated into view. More, particularly, the flower and leaf like objects are elevated by mechanical means from tubes that are arranged within a non-transparent base such that these tubes open into a transparent enclosure under a transparent cover that is attached to the non-transparent base such that when the flower and leaf like objects are elevated by mechanical means the flower and leaf like objects become visible within the transparent enclosure. Further, the observation of the upward motion of flower and leaf like objects can be repeated as the flower and leaf like objects can be mechanically lowered from view and the flower and leaf like objects can by mechanical means be elevated back into view.
REFERENCES:
patent: 496257 (1893-04-01), Gibson
Downs Arthur R.
Downs Theresa L.
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