US Patent: 1,847,481
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| Edge-Guided Scribing Gauge
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Patentee:
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| Earl Hallgren (exact or similar names) - Des Plaines, IL |
| USPTO Classifications: |
| 33/44 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 03, 1927 |
| Granted: |
Mar. 01, 1932 |
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Ralph Brendler
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Description: |
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This is a complex butt gage design, with 4 different arms and two moveable
fences. Its main claims involve the use us set screw to prevent the gage
from being knocked out of alignment, and using two fences to be able to
register off both edges of the door at once.
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