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High Duty Alloys Ltd

High Duty
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
GB544114A Improvements in and relating to the production of metal art… Expired / Lapsed 1940-12-04 — 0 Details
US2231336A Production of metal sections by extrusion Expired / Lapsed 1939-06-30 1941-02-11 0 Details