Patents for Thomas Robson


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Patents for Thomas Robson
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	NS-16	Jun. 22, 1852	T. Robson	Fog bell or gong for giving notice of danger to vessels approaching rocks
	NS-17	Jun. 22, 1852	T. Robson	Improvements in a horizontal windmill, or pneumatic machine for impelling a hammer or tongue, &c.
	NF-3	Oct. 05, 1852	T. Robson	Improved fog bell or gong, and pneumatic machine for working the same