Large Early 20th C. Cast Iron and Wood Laboratory Test Tube and Beaker Stand C.1920 (Free Shipping)

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Alex C. Hoffmann, Louis E. Stein - Gas Cyclones and Swirl Tubes_ Principles, Design, and Operation-Springer (2007).pdf

PREMIUM QUALITY || Premium quality test tube stand featuring a sturdy wood construction that will stand up to the wear and tear of the lab VERTICAL

EISCO Wooden Test Tube Rack - Holds 12 Tubes up to 22mm Diameter - Test Tube Holder, Crochet Hook Stand, Spice Rack

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2023 July 19 & 20 Automobilia & Petroliana by Morphy Auctions - Issuu

group of three matching original early 20th century antique american research laboratory research stands with adjustable and/or detachable cast iron rings

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original vintage american industrual american industrial single base research laboratory retort or beaker stand with cast iron adjustable ring clamp