Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer
Reexamination Certificate
2005-04-26
2005-04-26
Ngo, Chuong Dinh (Department: 2124)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Reexamination Certificate
active
06886022
ABSTRACT:
A calculator with liquid ornament includes a base, on a predetermined position of which a downward cavity is formed for detachably or fixedly receiving a hollow enclosure therein. The cavity has dimensions and shape matching with an appearance of the base, and the hollow enclosure has dimensions and shape matching with appearances of the calculator and the cavity to create an integral beauty for the calculator. The hollow enclosure is adapted to contain different types of decorative liquids and floating ornaments therein, giving the calculator a unique appearance and added value.
REFERENCES:
patent: 5379274 (1995-01-01), Lee
patent: 6066021 (2000-05-01), Lee
patent: 6380926 (2002-04-01), Ho
patent: 6438072 (2002-08-01), Tsai
Dennison Schultz Dougherty & MacDonald
Ngo Chuong Dinh
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