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All Patents in class 177/169
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
197,618	Nov. 27, 1877	M.S. Drake	Improvement in spring-scales for weighing	scales and balances
1,993,577	Mar. 05, 1935	E.J. Von Pein	Low drum scale
2,287,814	Jun. 30, 1942	K.C. Allen, D.A. Meeker	Scale

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