Machines not elsewhere specified – Heat treatment – welding or brazing – Scientific – laboratory – or industrial heating equipment
Patent
1989-01-25
1992-05-19
Walsh, Donald P.
Machines not elsewhere specified
Heat treatment, welding or brazing
Scientific, laboratory, or industrial heating equipment
Patent
active
D03262731
REFERENCES:
patent: D215093 (1969-09-01), Cone
patent: D234847 (1975-04-01), Hoffman
patent: D258526 (1981-03-01), Nederman
patent: 3604694 (1971-09-01), Muller
patent: 3737282 (1973-06-01), Hearn et al.
patent: 3744650 (1973-07-01), Henebry et al.
patent: 4761134 (1988-08-01), Foster
patent: 4849608 (1989-07-01), Muraoka et al.
Nakao Ken
Ohkase Wataru
Sato Seishiro
Davis Antoine D.
Tel Sagami Limited
Walsh Donald P.
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