B - Operations – Transporting – 26 – D
Patent
B - Operations, Transporting
26
D
164/112, 144/113
B26D 3/06 (2006.01) B23D 45/14 (2006.01) B27G 5/00 (2006.01) B28B 11/08 (2006.01) G06F 1/16 (2006.01)
Patent
CA 2008298
ABSTRACT An apparatus and method for forming a flat- bottomed V-groove in wallboard involving a pair of oppositely angled circular saws, wherein saw blades have an obtusely angled outer edge, as by grinding back one corner of each of a plurality of carbide tips on at least one of the two saw blades.
National Gypsum Company
Osler Hoskin & Harcourt Llp
LandOfFree
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