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Patent number:
Patent Date:
US Patent: 2,263,680
Drop hammer
Patentees:
Reginald P. Fitzgerald (
exact
or
similar
names) - Braintree, MA
William H. J. Fitzgerald (
exact
or
similar
names) - Braintree, MA
USPTO Classifications:
72/414
,
72/436
,
72/437
,
72/453.18
,
72/456
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:
Jul. 08, 1937
Granted:
Nov. 25, 1941
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
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