Original Assignee Moleculon Research Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Larry D Nichols Current Assignee (The listed assignees may be inaccurate. Google Patents Pattern forming puzzle and method with pieces rotatable in groupsÄownload PDF Info Publication number US3655201A US3655201A US3655201DA US3655201A US 3655201 A US3655201 A US 3655201A US 3655201D A US3655201D A US 3655201DA US 3655201 A US3655201 A US 3655201A Authority US United States Prior art keywords pieces cubes sets exposed composite Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3655201A - Pattern forming puzzle and method with pieces rotatable in groups US3655201A - Pattern forming puzzle and method with pieces rotatable in groups
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