Combination square

Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles

Reexamination Certificate

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Details

C033S427000, C033S452000, C033SDIG010

Reexamination Certificate

active

10591738

ABSTRACT:
Novel combination squares for magnetically retaining a magnetic rule-type blade in a blade retaining slot. Novel combination squares including an L-shaped rule-type blade.

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patent: 6996911 (2006-02-01), Dinius
patent: 7178252 (2007-02-01), Belgard
patent: 33 14 344 (1984-10-01), None

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