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Licensed production abroad: the patent limb, tested

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AUDIT ROW #321 · SIXTY PATENTS, NO LICENCE RECORD REACHED

Polygon holds more than sixty patents by its own count — which makes the licensed-production question a real one for this town — and no record of a foreign licence of a Walkerton patent stands in the sources reached. The firm's foreign manufacture is its own (the Xiamen plant is the company's, not a licensee's), which is itself the modern answer's shape: this exporter kept production inside the firm and licensed nothing the record shows. The licence registers and the firm's own filings are named as the settler, and the item closes mixed — the test run and printed, the register open under its settler.

Principal sources: Polygon Company releases (the sixty-patent count; the Xiamen plant as company manufacture); settler named — patent licence registers and the firm's SEC-equivalent filings (none, the firm being private: its own disclosures).

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Using this page? Copy a credit line. Last updated November 12, 2026.

Source: Licensed production abroad: the patent limb, tested, Moosed History by Project Moosed, https://history.projectmoosed.com/usa/midwest/indiana/walkerton/exports/licensed-production-abroad-the-patent-limb-tested/