Three-dimensional puzzle

Games – toys – and sports goods – Toy – Coordination or hand-manipulative type

Patent

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2101

Patent

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D0427248&

REFERENCES:
patent: D18592 (1888-09-01), Volk
patent: D128376 (1941-07-01), Herman
patent: D141036 (1945-05-01), Ridley
patent: D160283 (1950-09-01), Steinhardt
patent: D161829 (1951-02-01), Goodman
patent: D271897 (1983-12-01), Ma
patent: D318311 (1991-07-01), Chen
patent: 2725234 (1955-11-01), Cobe et al.

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