Pen nib with powder-gasphase diffusion layer

Details Pen nib with powder-gasphase diffusion layer Pen nib with powder-gasphase diffusion layer

1983-05-12

1985-09-10

Bratlie, Steven A.

Coating implements with material supply

Including stylus

401265, 401292, B43K 106

Patent

active

045403031

ABSTRACT:
A nib having an ink tube of chrome nickel steel, and also a cleaning wire which likewise consists of chrome nickel steel, is subjected to surface hardening by means of a boride process.

REFERENCES:
patent: Re30626 (1981-05-01), Kaplan et al.
patent: 3025835 (1962-03-01), Race
patent: 3558235 (1971-01-01), Bok
patent: 3859190 (1975-01-01), Koelichen, Jr.

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