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[Letter from Chicago Concrete Breaking Co. to Alex Bradford - November 8, 1939]

Description: Letter from the Chicago Concrete Breaking Company to Alex Bradford discussing the efficacy of hydraulic cartridges within the field demolition. The results of the Chicago Concrete Breaking Co. was that hydraulic cartridges were simply too slow and ineffective when compared to pneumatic pavement breakers in locations where explosives were not plausible.
Date: November 8, 1939
Creator: Chicago Concrete Breaking Co.
Partner: Private Collection of Mike Cochran

[Letter from Alex Bradford to J. G. O'Rielly - October 14, 1943]

Description: Letter from Alex Bradford to J. G. O'Rielly discussing the positives and negatives of European and Middle Eastern crash trucks used to for fire suppression. Additionally Mr. Bradford mentions that he is interested in receiving the W. S. Rielly & Company catalog for the purchase of fire fighting equipment.
Date: October 14, 1943
Creator: Bradford, Alex
Partner: Private Collection of Mike Cochran
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