Assignee

BETTS JOHN MARSDEN

AU·1 granted patent·5 citations·filing 2012–2012

Technology mixA01K1 A63G1 A63H1 E04B1 E04H1 Y02A1

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1 record

0147US9334643B2Three dimensional upwardly convex frame and a method of constructing sameBETTS JOHN MARSDEN·Filed 2012·Granted May 10, 2016·5 cites·21 claims

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