Piccardi
{{PatentInfo |Inventor=Henry F. Soper, Edgar P. Sparks |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=598324 |ApplicationDate=1932-03-12 |PatentNum=1957677 |PatentDate=1934-05-08 |PriorityDate=1932-03-12 |Titolo=Liquid container and housi...