251311 ⎘
Cutting by use of rotating axially moving tool; Machine including plural tools; Plural, simultaneously operational tools with plural simultaneously operational work stations; Successively acting on workpiece Pivotally mounted, work-advancing, work-supporting means, pivot-axis parallel to tool-axis
Interlocking teeth for strengthening pinned connection between knuckle-jointed lance segments
#2Enhanced knuckle-jointed lance useful for internal cleaning and inspection of tubulars
#3Enhanced methods for handling tubulars useful during cleaning and inspection operations
#4Methods for handling tubulars useful during cleaning and inspection operations