Patents for Andrew Wilkinson Porter


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Patents for Andrew Wilkinson Porter
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	BR-7,407,542	Jul. 06, 1976	F.E. Allen, A.W. Porter	Saw blade cylindrical tension monitor
	CA-1,003,308	Jan. 11, 1977	A.W. Porter, F.E. Allen	Automatic roll tensioning method and apparatus
	AU-8,732,675	Jan. 25, 1979	F.E. Allen, A.W. Porter	Automatic roll tensioning method and apparatus