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Expired
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John Fleming Wallace
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Individual
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Individual
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Publication of GB190126321ApublicationCriticalpatent/GB190126321A/en
26,321. Wallace, J. F. Dec. 24. Traps, ventilating. The ventilating-box B is made with a hinged perforated cover secured by a spring catch F. The opening C has mounted over it a tray A to intercept dirt &c. The spring catch is pivoted to the underside of the cover and engages with a recess in the frame.
GB190126321D1901-12-241901-12-24Improvements in Ventilating Traps and Trap Covers or "Tobies" for Roadways, House Basements or other Places.
ExpiredGB190126321A
(en)