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Magnetic toy blocks
US 2,570,625 A
Filed
: 11/21/1947
Issued
: 10/09/1951
Est. Priority Date
: 11/21/1947
Status: Expired due to Term
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298
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Current Assignee
Victor Zimmerman
,
Zimmerman, Harry
Original Assignee
Victor Zimmerman
,
Zimmerman, Harry
Inventors
Zimmerman, Harry
,
Zimmerman, Victor
Application Number
US02/787,296
Time in Patent Office
1,418 Days
Field of Search
US Class Current
446/92
CPC Class Codes
A63H 33/046
comprising magnetic interac...
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