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Aetna Standard Engineering Co

Aetna Stan
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2294138A Die holding apparatus Expired / Lapsed 1941-07-16 1942-08-25 0 Details
US2190371A Shaft mounting for rolls or the like Expired / Lapsed 1938-03-01 1940-02-13 0 Details