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JOHNSON FAGG ENGINEERING COMPA

JOHNSON FA
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2765023A Method of manufacturing a packing ring Expired / Lapsed 1953-10-12 1956-10-02 0 Details
US2659233A Dynamometer apparatus Expired / Lapsed 1951-04-28 1953-11-17 0 Details