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2049472
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Information
Patent Grant
2049472
References
Source
Patent Number
2,049,472
Date Filed
Not available
Date Issued
Tuesday, August 4, 1936
87 years ago
CPC
H01L21/161 - Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
H01L21/164 - Oxidation and subsequent heat treatment of the foundation plate
H01L21/165 - Reduction of the copper oxide, treatment of the oxide layer
US Classifications
216 - Etching a substrate: processes
136 - Batteries: thermoelectric and photoelectric
148 - Metal treatment
257 - Active solid-state devices
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