FIELD: money, tokens for paying fares, playing games, and so on. SUBSTANCE: coin has element which is suitable for facilitated picking it up from surface and is designed as milling with elliptic and two conic surfaces. Shape of milling simplifies picking coin from surfaces and provides possibility to use it in automatic vending machines. EFFECT: increased functional capabilities. 1 dwg
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|---|---|---|---|
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| NECKTIE | 1996 |
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