| CPC E06B 3/66309 (2013.01) [E06B 3/667 (2013.01); E06B 3/67313 (2013.01)] | 20 Claims |

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1. A spacer frame assembly comprising:
a substantially linear channel comprising two lateral walls connected by a base wall, the channel having first and second ends that, when assembled, includes at least three sides and corresponding corners between each of the sides;
the linear channel further includes a nose portion of the first end and a receiving portion of the second end having a channel for receiving the nose portion; and
the nose portion comprising a first undulation in the first end and a first aperture and the receiving portion comprising a second undulation in the second end and a second locking aperture having a projection, the first and second undulations nesting when said ends are in an assembled position and the first locking aperture residing within and aligning with the second aperture aligning to form a through-hole when said ends are in the assembled position.
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