Dot printing wire

Details Dot printing wire Dot printing wire

1977-03-10

1979-05-22

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

75172R, B41J 312, C22C 504

Patent

active

041556607

ABSTRACT:
A dot printing wire is provided at its tip with a wear-resistant contact made of an alloy selected from the group consisting of alloys composed of two or more platinum group metals, alloys of platinum group metals and transition metals and alloys of platinum group metals, transition metals and boron.

REFERENCES:
patent: 1753162 (1930-04-01), Woodward
patent: 1797236 (1931-03-01), Klausmann et al.
patent: 2082719 (1937-06-01), Powell et al.
patent: 2206616 (1940-07-01), Devereux et al.
patent: 2279763 (1942-04-01), Sivil
patent: 2636819 (1953-04-01), Streicher
patent: 3480429 (1969-11-01), Thiede et al.
patent: 3828908 (1974-08-01), Schneider

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