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US Patent: D272,710
Paving breaker
Patentees:
Stanley E. Thorwaldsen - Grosse Point Farm, MI
Milton J. Antonick - Royal Oak, MI

USPTO Classifications:
D8/67

Tool Categories:

Assignees:
Thor Power Tool Co. - Aurora, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 01, 1981
Granted: Feb. 21, 1984

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Thor Power Tool Co.

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