Society of Glass Technology · [Sheffield] · leaf 559
Fig. 120. various sizes and the bracket may be adjusted up and downand angularly. G. D. 179. Method for Drawing Glass Tubing. L. N. BrunerBoulogne, France, and 8. D. Olsen, Brooklyn, New York, U.S.A.(Brit, Pat., No. 170957, August 4th, 1920).—Relates to the manu-
Glass
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