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US Patent: 2,977,696
Grubber Attachment for Bulldozers
Patentee:
Thurston V. Williams (exact or similar names) - Wilton, Hillsborough County, NH

USPTO Classifications:
171/107, 172/133, 172/777

Tool Categories:
construction machines : bulldozers

Assignees:
O. K. Tool Co., Inc. - Milford, Hillsborough County, NH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 08, 1959
Granted: Apr. 04, 1961

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for O.K. Tool Co., Inc.

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