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19 feb 1929 anni - Phillip Gravelle

Descrizione:

in the 1920s forensic ballistics was waiting at its inception. In 1929, using a comparison microscope adapted for the purpose by Calvin Goddard and his partner Phillip Gravelle used similar techniques to absolve the Chicago Police Department of participation in the St. Valentine's Day Massacre.

Aggiunto al nastro di tempo:

Forensic Timeline

ByConnor Parks
7 set 2018
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0
667

Data:

19 feb 1929 anni
Adesso
~ 96 years ago
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