-
-
-
-
-
-
3714401
-
Patent number 3,714,401
-
Issue date Jan 30, 1973
-
G01 - MEASURING TESTING
-
2812173
-
Patent number 2,812,173
-
Issue date Nov 5, 1957
-
G01 - MEASURING TESTING
-
2752146
-
Patent number 2,752,146
-
Issue date Jun 26, 1956
-
G01 - MEASURING TESTING
-
2703707
-
Patent number 2,703,707
-
Issue date Mar 8, 1955
-
G01 - MEASURING TESTING
-
1896255
-
Patent number 1,896,255
-
Issue date Feb 7, 1933
-
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES