Technical supply co., Scranton. [from old catalog] · Scranton, Pa., Technical supply co · leaf 220
■ »««!*5Si^ ii!£f-m- i … 2284 The Pittsburg is a single-column table having device for raising andlowering top. It can also be inclined from a horizontal to a perpendicularposition. The spring that encircles the brass tube assists the operator inraising the top, and is a safety device as well, keeping the top in place…
Engineering instruments · Drawing instruments
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