All Patents in class 144/29


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All Patents in class 144/29
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
9,526	Jan. 04, 1853	R. Kreter	Covering pianoforte-hammers	music instrument maker
470,276	Mar. 08, 1892	F.H. Wright	Machine for bushing mortises in piano keyboards	mortising machines