US Patent: 1,540,991
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Gauge Marking Gauge for Sash Locks
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Patentee:
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| Frank Holmgren (exact or similar names) - Minneapolis, MN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 24, 1923 |
| Granted: |
Jun. 09, 1925 |
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Ralph Brendler
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Description: |
| This is a specialized marking tool design to accurately place sash locks for double-hung windows. |
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