CA Patent: CA-79,369
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| Try Square
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Patentees:
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| William George Clements (exact or similar names) - Vancouver, Canada |
| Frank G. Lewis (exact or similar names) - Vancouver, Canada |
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Patent Dates:
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| Applied: |
Nov. 29, 1902 |
| Granted: |
Feb. 10, 1903 |
CIPO Data Espacenet patent
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Russ Allen Lee Valley newsletter
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Description: |
| Also US patent 725,614. An example was featured in a Lee Valley newsletter |
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