Metal mounting systems for lights, smoke detectors and other fixtures and signs comprising a two-primary piece, separable system, wherein a first piece provides a releasable mounting structure for a second piece, and the second piece provides a mounting structure for the fixtures and signs

Hand tool for placing lighting fixtures, smoke detectors, signs and other fixtures and mounting systems in relatively remote or hard to reach places and for removing them therefrom

Non-metal mounting systems for lights, smoke detectors and other fixtures and signs comprising a two-primary piece, separable system, wherein a first piece provides a releasable mounting structure for a second piece, and the second piece provides a mounting structure for the fixtures and signs