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Shoulder shaping attachment for road working machines
US 2,646,633 A
Filed
: 07/17/1951
Issued
: 07/28/1953
Est. Priority Date
: 07/17/1951
Status: Expired due to Term
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Current Assignee
William L. Jahn
Original Assignee
William L. Jahn
Inventors
Jahn, William L.
Application Number
US03/237,176
Time in Patent Office
742 Days
Field of Search
US Class Current
172/782
CPC Class Codes
E02F 3/7659
with the vertical centre-li...
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