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Class Information
Number: 5/57.1
Name: Beds > Sofa bed > Bed element > Hinge
Description: Device comprising a pivot connection specially employed in a sofa or other folding type of bed.

Sub-classes under this class:

Class Number Class Name Patents
5/57.2 Having anti-pivoting means 11

Patents under this class:

Patent Number Title Of Patent Date Issued
8464370 Convertible furniture item Jun. 18, 2013
6738997 Mechanism for a divan bed May. 25, 2004
4669135 Sofa bed with front extension Jun. 2, 1987
4437197 Folding sofa-bed mechanism Mar. 20, 1984
4376316 Hinge for adjustable beds and the like Mar. 15, 1983
4104745 Sofa bed with TV headrest Aug. 8, 1978

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