An "improved" C-Clamp for theatrical fixtures, invented by the JR Clancy company in the early 1980s and today sold by Rosco as the Sure Clamp.
Its significantly higher cost prevented it from dominating the market, but it has its applications, being particularly useful when touring pre-rigged lighting bars.
Its significantly higher cost prevented it from dominating the market, but it has its applications, being particularly useful when touring pre-rigged lighting bars.
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