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Smith; Alfred J.
Claymont, DE
No. of patents:

Patent Number Title Of Patent Date Issued
5176476 Router cutting bit January 5, 1993
A router bit for providing smooth finish cuts in soft metal, such as aluminum, includes a plurality of helical cutting edges that are disposed at a helix angle of 45 degrees. The cutting edges each include a cutting face having a positive rake angle of approximately 18 degrees, and a lan

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