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J B KNIGHT CO Inc

J B KNIGHT
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3500856A Irrigation system with driving chalk line Expired / Lapsed 1967-08-23 1970-03-17 0 Details
US3281080A Irrigation system Expired / Lapsed 1963-11-14 1966-10-25 6 Details