Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof

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Stands or trestles as supports for apparatus or articles placed thereon (without heads F16M13/00; easels or stands for blackboards or the like A47B97/04; show-stands A47F7/00; for workmen E04G1/32; supporting or suspending for lighting devices F21V21/00) > Heads > Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof