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3420649
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Information
Patent Grant
3420649
References
Source
Patent Number
3,420,649
Date Filed
Not available
Date Issued
Tuesday, January 7, 1969
55 years ago
CPC
C03C3/07 - containing lead
C03B5/1875 - of the screw or pump-action type
C03B7/005 - Controlling, regulating or measuring
C03B17/04 - Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
US Classifications
065 - Glass manufacturing
501 - Compositions: ceramic
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