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| Patents for S. J. Haviland | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-55,988 | May 19, 1897 | W.J. Grinden, G. Amborn | Chain Wrench | chain and strap wrenches | |
| CA-55,989 | May 19, 1897 | W.J. Grinden, G. Amborn | Chain Wrench | chain and strap wrenches | |