Machine for drawing of lottery balls
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 9, 1990
Grant Date -
N/A
app pub date -
Jun 16, 1989
filing date -
Jun 24, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A machine for the random drawing of balls being agitated by aa current of air. The machine includes a transparent receptacle in which the balls are placed, an annular space placed below and communicating with the receptacle, and a plurality of orifices defined by flaps positioned within the annular space. The flaps are capable of at least partially sealing the annular space.
First Claim
Family
International Classification(s)
Cited Art Landscape
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