Boring
Welcome | What’s New?
Site Map | Usage Note

Become a Contributor
Really Boring
What is a Leadholder?
Leadholder History
Leadholder Mechanics
Leadholder Database
Yawn
References
Contributors
Leadholder Links
Contact D. B. Smith

Swiss Patent 176,245 “Halter für Blei- und Farbminen”, 1934–1935

date of application
date granted
inventor
assignee
patent holder country
1934 March 26
1935 March 31
Carl Schmid

Switzerland
patent employed on
Caran d’Ache Fixpencil