248 / | HD | SUPPORTS |
200 | DF | BRACKETS {11} |
274.1 | DF | .~ Adjustable {5} |
276.1 | DF | .~.~ Plural joints {7} |
278.1 | .~.~.~ Vertical pivot at right angle to horizontal pivot {3} | |
279.1 | DF | .~.~.~.~> Having sliding joints |
280.11 | DF | .~.~.~.~> Counterbalanced |
281.11 | DF | .~.~.~.~> Having parallel arms |