Inventor
PLACHY WILLIAM M
10 patents
Patents
10 patentsUS4122638AOct 31, 1978
Folding structures considered to be primarily useful for play purposes
BRIAN EDWARD D O65 citations95
US4822314AApr 18, 1989
Interlocking container and toy block sets
BRIAN EDWARD D O32 citations91
US4166343ASep 4, 1979
Collapsible structures
BRIAN EDWARD D O55 citations91
US4109427AAug 29, 1978
Foldable structures considered to be primarily useful as doghouses
BRIAN EDWARD D O38 citations91
US4085762AApr 25, 1978
Folding, rigid, tent-like structure
BRIAN EDWARD D O49 citations91
US4159112AJun 26, 1979
Folding structure used as a climber for preschool children
BRIAN EDWARD D O29 citations81
US4365799ADec 28, 1982
Folding slide and platform structure
BRIAN EDWARD D O11 citations72
US4198069AApr 15, 1980
Folding three-cornered vehicle
BRIAN EDWARD D O7 citations72
US4138140AFeb 6, 1979
Folding structures useful as two-wheeled carts
BRIAN EDWARD D O7 citations72
US4109933AAug 29, 1978
Folding wheelbarrows
BRIAN EDWARD D O17 citations72