Title Patents throughout the world / by Wm. Wallace White and Byfleet G. Ravenscroft

Published New York, N.Y. : Trade Activities, Inc

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Description Online resource Notes Description based on: 1977 Subject Patents -- Periodicals. Genre/Form Periodicals. Form Electronic journal Author White, William Wallace, 1862-1944. Ravenscroft, Byleet Gwillym, 1890- LC no. sn 87029976

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