-
-
3068266
-
Patent number 3,068,266
-
Issue date Dec 11, 1962
-
C07 - ORGANIC CHEMISTRY
-
2076217
-
Patent number 2,076,217
-
Issue date Apr 6, 1937
-
C07 - ORGANIC CHEMISTRY
-
2008649
-
Patent number 2,008,649
-
Issue date Jul 16, 1935
-
C07 - ORGANIC CHEMISTRY
-
1932179
-
Patent number 1,932,179
-
Issue date Oct 24, 1933
-
C07 - ORGANIC CHEMISTRY