Multiple offset boom extension
Multiple path sling construction
Multiple prehension manipulator mechanism
Multistaged telescope boom
Non-marring lifting clamp
Novel release latch - c-i-p
Novel release latch cip ii
Offsetting link assembly for folding luffing jib
Oil derrick string-up apparatus and methods
Oil well fishing tool
Oil well grapple
Oriented net furniture support material
Oscillating system for derrick booms
Outrigger
Outrigger beam and jack construction
Outrigger float mounting
Outrigger jack assembly
Outrigger support mechanism
Outrigger system for vehicles
Overhead conveyor