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| Patents for Hugh B. Callander | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-122,065 | Nov. 23, 1909 | H.B. Callander | Hanger for elevated tracks | ||
| CA-213,309 | Sep. 13, 1921 | H.B. Callander | Clamp for metal pipes | ||