Mechanical pencil

Details Mechanical pencil Mechanical pencil

1998-10-29

1999-09-28

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 49, D19 55, D19 56, 1906

Patent

active

D04145127

REFERENCES:
patent: D57397 (1921-03-01), Taussig
patent: D57398 (1921-03-01), Taussig
patent: D64772 (1924-05-01), Swanberg
patent: D174249 (1955-03-01), Daniels
patent: D269189 (1983-05-01), Sakaoka
patent: D314978 (1991-02-01), Oka
patent: 1353215 (1920-09-01), Campbell
patent: 2690736 (1954-10-01), Musser
patent: 2770221 (1956-11-01), Tonkowich
patent: 3411854 (1968-11-01), Rosler et al.

Affiliated with

Also associated with

Rating

Mechanical pencil does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical pencil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical pencil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-690030