Technical supply co., Scranton. [from old catalog] · Scranton, Pa., Technical supply co · leaf 52
nual Training Schools, and in the lower grades aswell. Further information on any or all of these lines will be cheerfully givenwithout involving the inquirer under any obligation. THE TEC BRAND FEATURES OF PREFERENCE THE TEC EFFICIENCY PIVOT JOINT In the Tec Pivot joint the steel bolt or screw… … All ruling pens, as well as pen points of this set, are made of one piece ofbest tempered steel, the upper blade being constructed in the form of aspring, which, on being released, opens wide enough to permit the cleaningof the pen, easily. In order to obtain the former thickness of line after the…
Engineering instruments · Drawing instruments
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