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CPC
C01G21/18
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C
CHEMISTRY METALLURGY
C01
Inorganic chemistry
C01G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G21/00
Compounds of lead
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C01G21/18
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Patents Grants
last 30 patents
Information
Patent Grant
3423169
Patent number
3,423,169
Issue date
Jan 21, 1969
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
3239308
Patent number
3,239,308
Issue date
Mar 8, 1966
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
2187108
Patent number
2,187,108
Issue date
Jan 16, 1940
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
1502079
Patent number
1,502,079
Issue date
Jul 22, 1924
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents