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Class Information
Number: 273/159
Name: Amusement devices: games > Puzzles > Take-aparts and put-togethers > Flexible cord or strip
Description: Puzzles in which at least one of the parts is a flexible cord or strip.










Patents under this class:

Patent Number Title Of Patent Date Issued
8393623 Mechanical puzzle with hinge elements, rope elements, and knot elements Mar. 12, 2013
8205886 Didactic skill developing puzzle Jun. 26, 2012
8181960 Reciprocally linked nesting structure May. 22, 2012
7547020 Three dimensional toy having multi-shaped interlocking members which have a spring mechanism inside a cylindrical threaded shaft for interlocking one member to another member Jun. 16, 2009
6679644 Universal, inherently-tensile connection and construction system, apparatus, method and product-by-process Jan. 20, 2004
5639090 Geoboard with movable pins Jun. 17, 1997
5322284 Changeable configuration puzzle game Jun. 21, 1994
5302148 Rotatable demountable blocks of several shapes on a central elastic anchor Apr. 12, 1994
5299806 Educational device Apr. 5, 1994
5174570 Image transformation puzzles Dec. 29, 1992
5120068 Domino with folding portions to change indicia Jun. 9, 1992
5108100 Pyramid puzzle formed from tetrahedral and octaeder pieces connected by a strand Apr. 28, 1992
5046988 Linked polyhedra with corner connector Sep. 10, 1991
4957292 Loop transfer game device Sep. 18, 1990
D274920 Puzzle Jul. 31, 1984
4418915 Puzzle of stacked segments Dec. 6, 1983
4391445 Logical skill toy Jul. 5, 1983
D266339 Puzzle Sep. 28, 1982
4221386 Ring and loop puzzle Sep. 9, 1980
4026560 Puzzle May. 31, 1977
4015852 Maze-type puzzle Apr. 5, 1977
3997168 Ring and cord puzzle Dec. 14, 1976
3958807 Slotted-insert extraction puzzle May. 25, 1976











 
 
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