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GB190304347A
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Improvements in Means for Heating, Cooling and Ventilating Buildings.
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US773828A
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Curative apparatus.
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US724145A
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Apparatus for simultaneously supplying heated and refrigerated air.
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US740714A
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Apparatus for the medication of air.
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US772387A
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Apparatus for tempering air.
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US723504A
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Belt conveyer for transporting sand, gravel, &c.
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US771847A
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Curative couch.
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US721254A
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Cabinet air cooler or heater.
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US699352A
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Ventilating apparatus.
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US689764A
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Mechanism for transmitting power and motion.
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US690485A
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Apparatus for cooling and ventilating.
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US685803A
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Excavating machinery.
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US689522A
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Lubricator for shafting, & c.
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US689521A
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Pulley.
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US666165A
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Supporting mechanism for carrier-belts.
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US666164A
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Roller mechanism for conveyer-belts.
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US666163A
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Pulley system for conveyer-belts, &c.
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GB189924685A
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Improvements in Excavating Apparatus.
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US639004A
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Excavating apparatus.
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US639003A
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Conveyer apparatus.
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