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2172184
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Information
Patent Grant
2172184
References
Source
Patent Number
2,172,184
Date Filed
Not available
Date Issued
Tuesday, September 5, 1939
85 years ago
CPC
A47F11/08 - Non-reflecting shop-windows
US Classifications
359 - Optical: systems and elements
052 - Static structures
312 - Supports: cabinet structure
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