Add to ORKGPatent for improvements in ventilators and protectors for roofs relating to "a ventilating combing or ridging for roofs of houses" (lines-15-16) including illustrations and instructions
Patent for a new and improved drier. This design "relates to improvements in driers for lumber . . ....
Patent for a new exhaust fan. Patent for "a new and improved exhaust fan design that can be adapt...
Patent for a metallic roof that has "an improved means for securing the adjoining edges of the metal...
Patent for a new and improved ventilator. This design is "to provide a ventilator which shall automa...
Patent for chimney protectors "which can be readily applied and will secure a water-tight joint betw...
Patent for a new and improved ventilating cover. This design "consists in the detailed construction ...
Patent for a new and improved combined ventilator and chimney. This design consists in "[a] combined...
Patent for a new and improved combined chimney and ventilator. This design consists "[i]n a combined...
Patent for improvement in Combined Ventilators and Chimneys. This object is to be used with the bric...
Patent for "a new and improved ventilated hat...which will enable others skilled in the art to make ...
Patent for a new and improved ventilator. This design consists in "a fan casing, constructed and arr...
Patent for a new and improved car-ventilator. This design consists in "an eduction pipe arranged len...
Patent for a new and improved ventilating attachment for hearths. This design "consists in extending...
Patent for a new and improved ventilating chimney. This design consists in "the combination, with th...
Patent for improvements in furnaces. Patent for "a new and improved design for furnaces for retur...
Patent for a new and improved drier. This design "relates to improvements in driers for lumber . . ....
Patent for a new exhaust fan. Patent for "a new and improved exhaust fan design that can be adapt...
Patent for a metallic roof that has "an improved means for securing the adjoining edges of the metal...
Patent for a new and improved ventilator. This design is "to provide a ventilator which shall automa...
Patent for chimney protectors "which can be readily applied and will secure a water-tight joint betw...
Patent for a new and improved ventilating cover. This design "consists in the detailed construction ...
Patent for a new and improved combined ventilator and chimney. This design consists in "[a] combined...
Patent for a new and improved combined chimney and ventilator. This design consists "[i]n a combined...
Patent for improvement in Combined Ventilators and Chimneys. This object is to be used with the bric...
Patent for "a new and improved ventilated hat...which will enable others skilled in the art to make ...
Patent for a new and improved ventilator. This design consists in "a fan casing, constructed and arr...
Patent for a new and improved car-ventilator. This design consists in "an eduction pipe arranged len...
Patent for a new and improved ventilating attachment for hearths. This design "consists in extending...
Patent for a new and improved ventilating chimney. This design consists in "the combination, with th...
Patent for improvements in furnaces. Patent for "a new and improved design for furnaces for retur...
Patent for a new and improved drier. This design "relates to improvements in driers for lumber . . ....
Patent for a new exhaust fan. Patent for "a new and improved exhaust fan design that can be adapt...
Patent for a metallic roof that has "an improved means for securing the adjoining edges of the metal...