DR. DAVID MARK LEACH, M.D.
Psychiatric at Ridgewood Ln, Upper Makefield, PA
License number
Pennsylvania MD039284E
Category
Psychiatric
Type
Psychiatry
Address
Address
1426 Ridgewood Ln, Upper Makefield, PA 18940
Phone
(215) 579-7976
Professional information
Multi-Skill Level Puzzle
US Patent:
2003008, May 1, 2003
Filed:
Nov 1, 2001
Appl. No.:
10/004215
Inventors:
David Leach - Newtown PA, US
Madeline Leach - Newtown PA, US
Madeline Leach - Newtown PA, US
International Classification:
A63F009/10
US Classification:
273/15700R
Abstract:
A puzzle that utilizes three mechanisms of puzzle construction for supporting user skill heterogeneity, demarcation into subdivisions and enhancement of excitement in assembling a puzzle. The three mechanisms involve the use of shaped protrusions/recesses, object pieces and puzzle frame pieces.