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US Patent: 2,248,478
Roller vibrator
Patentee:
Arthur William Mall (exact or similar names) - Chicago, IL

USPTO Classifications:
404/117

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 08, 1938
Granted: Jul. 08, 1941

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

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