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Fred T Roberts and Co

Fred T Rob
Active Patents
0
Total Holdings
4

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3872893A Self-reinforced plastic hose and method for molding same Expired / Lapsed 1974-02-07 1975-03-25 8 Details
US3349806A Reinforced hose construction and method of making the same Expired / Lapsed 1964-12-07 1967-10-31 2 Details
US3222728A Apparatus for making molded flexible hose Expired / Lapsed 1962-07-18 1965-12-14 2 Details
US3076737A Corrugated annularly reinforced hose and method for its man… Expired / Lapsed 1957-11-15 1963-02-05 2 Details