E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/51
E01C 23/09 (2006.01) B28D 1/18 (2006.01) E01C 23/088 (2006.01)
Patent
CA 1061624
ABSTRACT OF THE DISCLOSURE Groove cutting apparatus having a rotatable cutting drum comprising a plurality of spaced drum segments coaxially mounted on a central shaft. A plurality of secondary shafts are spaced circumferentially around the central shaft and supported by the drum segments. Apertured cutting members are mounted on the secondary shafts and spaced by the drum segments.
242406
Fairweather Ernest S.
Jackson Philip
LandOfFree
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