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1943921
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Information
Patent Grant
1943921
References
Source
Patent Number
1,943,921
Date Filed
Not available
Date Issued
Tuesday, January 16, 1934
90 years ago
CPC
B43L9/16 - Features common to compasses, dividers, and callipers
Y10T24/44419 - Pivoted or rotated element
US Classifications
033 - Geometrical instruments
024 - Buckles, buttons, clasps, etc.
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