Dahlstrom Metallic Door Company Pencil

Dahlstrom Metallic Door Company Pencil

Patent January 1914

https://patents.google.com/patent/US1085386

Application US73835412A events

1912-12-23

Application filed by Jens P Nielsen, Carl C Nielsen, Joseph Leitschuh 1912-12-23

Priority to US73835412A 1914-01-27

Application granted 1914-01-27

Publication of US1085386A 1931-01-27

Anticipated expiration 2020-02-06

Application status is Expired - Lifetime