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All Patents in class 188/82.7
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	983,668	Feb. 07, 1911	W.A. Barker	Friction-brake mechanism
	3,902,576	Sep. 02, 1975	R.M. Biessener, R.W. Pitan	Add-on unidirectional brake

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