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US Patent: 2,636,855
Method of Producing Photoconductive Coatings
Patentee: Ernst Schwarz (exact or similar names) - London, England USPTO Classifications: 118/726, 204/164, 204/192.15, 204/192.26, 427/252, 430/128 Tool Categories: manufacturing : manufacturing processes Assignees: Hilger & Watts, Ltd. - London, England Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 18, 1948 Granted: Apr. 28, 1953 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hilger & Watts

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