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Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 5549515 | Coin-magic device A coin-magic device has a stand on top of which a first coin receiving surface is formed. The device further comprises a tray that is used as placed on the first coin receiving surface to hide the coin. The tray has also a coin receiving surface that is r... | 08/27/1996 |
| 4811828 | Savings bank A savings bank having a plurality of coin slots opening through its front wall for admitting coins to its coin storage chamber. A coin barrier is located at each coin slot. An activator is provided for moving each barrier between a first position in which... | 03/14/1989 |
| 4458433 | Desk calendar A desk calendar is disclosed comprising a hollow body of rectangular hexagonal form in transverse cross-section having six side faces. Calendar indicia denoting the days of the months of a twelve months period is presented on an inner hexagonal sleeve the... | 07/10/1984 |
