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Patents for Ernest Parkinson
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	GB-190,817,469	Jul. 01, 1909	E. Parkinson	Improvements in and relating to operating vise screws
	GB-250,049	Apr. 08, 1926	E. Parkinson	Improvements in or relating to vises

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