1930s Johnson Lock Patent Litigation Reference Book sidney dillon package store

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1930s Johnson Lock Patent Litigation Reference Book sidney dillon package storec. 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