Vashon, George S., & co., Washington, D.C. [from old catalog] · Washington, D.C., G. S. Vashon & co. · leaf 53
be turned partly off or on like gas. 14. Type-setting and casting machinery on the plan of the linotype, butmore simple and easier in operation. 15. Improved electrical conductor, lessening resistance to the current andloss thereby by leakage and radiation. 16. A noiseless typewriting machine is… … Patents Guaranteed. 53 18. A tough transparent substitute for glass, which will not crack under ahigh degree of heat, and will withstand a great strain. 19. A perfect fire-proofing compound, which will not injure the materialsto which it is applied, and which is safe and inexpensive. 20. An…
Patents · Inventions
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