Stretch level

Details Stretch level Stretch level

2010-05-26

2011-11-01

Bennett, Brad (Department: 2841)

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

C033S451000, C033S809000

Reexamination Certificate

active

08046929

ABSTRACT:
A level11is provided comprising a base1having a top reference edge2and recession3wherein a slidable member8fits within the recession3of the base1and is slidable to extend the top reference edge2of the base for multiple lengths. Further embodiments of the present invention provide a level11having attachment means to level at various angles and additional lengths.

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patent: 7562463 (2009-07-01), Vaes
patent: 2002/0121026 (2002-09-01), Pustay
patent: 2009/0113733 (2009-05-01), Hale
patent: 2010/0000107 (2010-01-01), Cobb et al.

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