1920s French Brevet d’Invention Patent Archive (Lot of Four) divider Mounting holes are present at

Mounting holes are present at the corners and along the centerline

Exhibits some scratches/scuffs and tarnish/rust

MM - 106243 - 041823

factory-floor origin

This thermometer is housed inside a framed "No Fishing" scene and features contact information for the O

1920s French Brevet d’Invention Patent Archive (Lot of Four) divider Mounting holes are present atc. 1920s; Rpublique Franaise Johnson Lock Co. Paris, France Chicago Group of four original French patent document sets ("Brevet d'Invention") relating to mechanical innovations attributed to Johnson Lock Co., each bearing official French government formatting and typographic seals. These documents represent formal international patent filings or protections, extending American mechanical inventions into the European market during a period of rapid