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| Patents for Bert W. Kortenhoff | |||||
| Number | Date | Patentee | Title | Type | |
| D29,785 | Dec. 13, 1898 | F.A. Baldwin | Design for a cigar-shield | cigar cutter and lighters | |
| 642,664 | Feb. 06, 1900 | F.A. Baldwin | Card-case for duplicate whist | ||