Image:Pinsetter patent 2973204 diagram excerpt crop.png
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 03:42, 17 January 2008 | 640×960 (99 KB) | Lar | ({{Information |Description=Excerpt from diagram of 2973204 for the pinsetting machine, a device used to automate bowling alleys |Source=US Patent 2973204 as seen at [http://www.google.com/patents?id=1ydOAAAAEBAJ patent] in [[w:Google Patents) |
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