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US Patent: 1,722,506
Drop hammer
Patentee:
Henning G. Sahlin (exact or similar names) - Boston, MA

USPTO Classifications:
192/131R, 91/27, 91/31, 91/410, 91/448

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: Aug. 13, 1924
Granted: Jul. 30, 1929

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Pneumatic Drop Hammer Co.

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