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1277089
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Information
Patent Grant
1277089
References
Source
Patent Number
1,277,089
Date Filed
Not available
Date Issued
Tuesday, August 27, 1918
106 years ago
CPC
G01J3/12 - Generating the spectrum Monochromators
G01J2003/1278 - Mask with spectral selection
G01J2003/1876 - Polychromator
US Classifications
362 - Illumination
250 - Radiant energy
607 - Surgery: light, thermal, and electrical application
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