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Educational device
US 2,682,118 A
Filed
: 05/24/1952
Issued
: 06/29/1954
Est. Priority Date
: 05/24/1952
Status: Expired due to Term
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30 Citations
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Current Assignee
Gerald G. Larsen
Original Assignee
Gerald G. Larsen
Inventors
Larsen, Gerald G.
Application Number
US03/289,802
Time in Patent Office
766 Days
Field of Search
US Class Current
434/160
CPC Class Codes
G09B 17/00
Teaching reading teaching l...
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