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| == Dettagli == | | == Dettagli == |
| {{PatentInfo | | {{PatentInfo |
− | |Inventor=Adolf Klein,James W. Greenbaum | + | |Inventor=Adolf Klein, James W. Greenbaum |
− | |Assignee=Adolf Klein,James W. Greenbaum | + | |Assignee=Adolf Klein, James W. Greenbaum |
| |Country=US | | |Country=US |
| |ApplicationNum=722677 | | |ApplicationNum=722677 |