This shirt is for the Kurt Manufacturing Workholding Machinist Vise 1968 Patent No. 3397880.
The patent states:
An Object of this invention is to provide a novel precision machine vise, of simple and inexpensive but very durable construction, wherein the jaws of the vise, when in gripping relation with respect to a workpiece are not only completely immobilized, but the reaction forces which are produced in the jaws in response to the compression forces are transmitted to an exterior clamping structure which is capable of some deformation or yielding movement without affecting the clamping jaws of the vise. More specifically, the clamping structure to which the reaction forces are transmitted is carried by the base of the vise but is located exteriorly thereof and does not therefore require the vise to be altered substantially when the clamping structure is applied thereto.
Your typical 100% cotton machinist t-shirt (except for heather colors, which contain 10% polyester). Pre-shrunk to make sure your size is maintained throughout several washes, and a classic fit.
• 100% jersey knit
• Seamless, double-need ⅞” collar
• Taped neck and shoulders
• Classic fit