| 摘要 |
A versatile, ergonomic marking device for marking game cards such as bingo cards, having a container of a liquid ink and a porous sponge dabber by which to apply the ink, in which the container body is shaped to enable it to be held in various ways and the container head holding the dabber is positioned at an optimum angle relative to the container body to enable rapid play with a minimum of hand and arm motion.
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