| US 7,562,463 B2 | ||
| Combination level and square | ||
| Ed Vaes, 223 Avondale Street, Hamilton, ON L8L 7C4 (Canada) | ||
| Filed on Jul. 05, 2007, as Appl. No. 11/822,323. | ||
| Application 11/822323 is a continuation of application No. PCT/CA2006/000097, filed on Jan. 26, 2006. | ||
| Claims priority of provisional application 60/647418, filed on Jan. 28, 2005. | ||
| Prior Publication US 2007/0266576 A1, Nov. 22, 2007 | ||
| Int. Cl. G01C 9/26 (2006.01) | ||
| U.S. Cl. 33—374 [33/376; 33/451] | 8 Claims |
| 1. A combination level and square comprising:
a straight generally rectangular first level;
a straight second level having one angled straight end and one square end, wherein both levels having a levelling means, the
angled straight end subtending an angle of between 15 and 75 degrees;
the first level having a cavity defined therein that is dimensioned and adapted to releasably receive the second level therein
placing the levels in a nested position;
the first and second level having means for releasably attaching the first level to the second level selectively placing the
levels in a long position, square position, and T-square position; and
the angled straight end having means for releasably attaching the first level to the second level at an angled position, the
angled position subtending an obtuse angle between the first level and the second level.
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