Method of making a watchcase

Details Method of making a watchcase Method of making a watchcase

1986-01-28

1987-04-21

Goldberg, E. A.

Electric heating

Metal heating

For bonding with pressure

29179, B23K 1114

Patent

active

046598979

ABSTRACT:
A method of making a watchcase, in which two projections are formed on a joining surface of a part of the watchcase, such as a band connecting lug. The part is joined to another part such as a case body by projection welding to make the watchcase.

REFERENCES:
patent: 4087894 (1978-05-01), Kuechli et al.
patent: 4382172 (1983-05-01), Takasugi
patent: 4409460 (1983-10-01), Nishii et al.
patent: 4495397 (1985-01-01), Opprecht et al.

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