Machines not elsewhere specified – Heat treatment – welding or brazing – Solid material melting – e.g. – solder – etc.
Patent
1979-06-18
1982-02-16
O'Keefe, Veronica
Machines not elsewhere specified
Heat treatment, welding or brazing
Solid material melting, e.g., solder, etc.
219 70, 219 8621, 219 90, 219234, D1504
Patent
active
D02630540
REFERENCES:
patent: 1659911 (1928-02-01), Fay
patent: 2882386 (1959-04-01), Hermanny
patent: 3924332 (1975-12-01), Rauch et al.
Northern Telecom Limited
O'Keefe Veronica
Turpin Frank P.
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