Apparatus for use in installing suspended ceilings

Work holders – Plural holders to hold workpieces relative to each other – Workpieces normal to each other

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Details

269 46, 269904, B23P 1900

Patent

active

057853061

ABSTRACT:
An apparatus for use in installing the framework for supporting a suspended ceiling having a pair of parallel legs for supporting a section of gridwork and a clamp for attaching the apparatus to a ceiling joist. The apparatus includes a plurality of grid supporting positions as well as level indicating means to accurately position the suspended ceiling supports.

REFERENCES:
patent: 2524916 (1950-10-01), Loos
patent: 2567586 (1951-09-01), Werder
patent: 3411735 (1968-11-01), Hurd
patent: 3767008 (1973-10-01), LeBlanc et al.
patent: 4132396 (1979-01-01), Graham
patent: 4270721 (1981-06-01), Mainor
patent: 4836517 (1989-06-01), Vossler
patent: 5148605 (1992-09-01), Julia
patent: 5388813 (1995-02-01), Arsenault
patent: 5611189 (1997-03-01), Fleck

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