1930s Johnson Lock Patent Litigation Reference Book sidney dillon and exposure are visible

and exposure are visible

Vintage salesman sample barn or farm building

front and center

package store

27" W x 32" D x 34" H

1930s Johnson Lock Patent Litigation Reference Book sidney dillon and exposure are visiblec. 1930s; Johnson Lock Co. Chicago Thick bound reference binder containing a compiled set of patent drawings, technical diagrams, and legal documentation related to early automotive locking devices and associated hardware. The contents include multiple detailed sheets illustrating mechanisms such as automobile tire lock cables and gear shift lever locks, with sectional diagrams, numbered components, and typed patent specifications. Several pages