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Interlocking building elements
US 3,399,916 A
Filed
: 11/07/1966
Issued
: 09/03/1968
Est. Priority Date
: 09/01/1966
Status: Expired due to Term
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Current Assignee
John Ensor Arthur
Original Assignee
John Ensor Arthur
Inventors
JOHN ENSOR ARTHUR
Application Number
US04/592,633
Time in Patent Office
666 Days
Field of Search
US Class Current
52/588.1
CPC Class Codes
E04B 1/541
Joints substantially withou...
E04D 3/365
by simple overlapping of th...
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