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US Patent: 2,612,868
Pneumatic drop hammer
Patentee:
Reginald P. Fitzgerald - Braintree, MA

USPTO Classifications:
173/127, 72/443, 72/453.18, 91/335, 91/352

Tool Categories:
metalworking machines : forging machines : drop hammers

Assignees:
Pneumatic Drop Hammer Co. - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 03, 1948
Granted: Oct. 07, 1952

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Pneumatic Drop Hammer Co.

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