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I seem to own this desk. The desk and chair both have PAT 1. 883. 322 in the metal. Does this mean the item I own is a first/or only production model? I'm not exactly sure how to go about my newly found piece of history.

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This chair and desk were covered by the patent number 1,883,322. It is easy to look up at google/patents. google.com/patents/US1883322 nothing in that number indicates anything other than the maker thought it was covered under that number. It is not a design patent, but a regular utility patent. It might have been stamped anytime during the patent's life or even a little while after. –  George White Jul 16 at 17:45
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