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US Patent: 2,449,647
Drop hammer
Patentee:
Reginald P. Fitzgerald - Braintree, MA

USPTO Classifications:
72/407, 72/446

Tool Categories:
metalworking machines : forging machines : drop hammers

Assignees:
Pneumatic Drop Hammer Co. - Braintree, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: May 21, 1945
Granted: Sep. 21, 1948

Patent Pictures:
USPTO pdf tiff
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Description:
Improvements to patent 1,924,545.

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