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Médias: Objets- Médias: Images
- Types de document: Postcards
- Types de document: Photographs
- Groupes: Milton - P. L. Robertson Collection
- Année: 1940
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- P. L. Robertson at the Milton Fall Fair
Peter Lymburner Robertson, 1879-1951. Inventor, industrialist. Inventor of the Robertson Recess Screw. For more information, see "P. L. Inventor of the Robertson Screw" by Ken Lamb. Peter Lymburner Robertson, 1879-1951. Inventor, industrialist. Inventor of the Robertson Recess Screw. For more information, see "P. L. Inventor of the Robertson Screw" by Ken Lamb.Milton Historical Society
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