Piccardi
{{PatentInfo |Inventor=George A. Theobald, Theodore A. Olson |Assignee=Pollock Pen Company |Country=US |ApplicationNum=629522 |ApplicationDate=1923-04-02 |PatentNum=1645167 |PatentDate=1927-10-11 |PriorityDate=1923-04-02 |Titolo=Die-casting machine |Ma...