Metal deforming – By extruding through orifice – With cutting
Patent
1988-12-21
1990-07-24
Larson, Lowell A.
Metal deforming
By extruding through orifice
With cutting
29179, 368280, B23P 1300
Patent
active
049427555
ABSTRACT:
The watchcase support (1) of this invention is fashioned from a contoured strip (2) which includes a profile in relief elongated in the longitudinal direction of the strip. Such profile includes projections (3, 4) and recesses (5, 6) which form a decorative undulation. Other embodiments are described in which the profiles are functionally employed for example to attach the watchcase to the support.
REFERENCES:
patent: 2020740 (1935-11-01), Putnam
patent: 3704507 (1972-12-01), Grube
patent: 4034552 (1977-07-01), Davidson
patent: 4236239 (1980-11-01), Imgruth et al.
patent: 4463057 (1984-07-01), Knurr
Eta SA Fabriques d'Ebauches
Larson Lowell A.
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