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US Patent: 1,540,991
Gauge
Marking Gauge for Sash Locks
Patentee:
Frank Holmgren (exact or similar names) - Minneapolis, MN

USPTO Classifications:
33/194

Tool Categories:
layout tools : special purpose gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 24, 1923
Granted: Jun. 09, 1925

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Ralph Brendler
Description:
This is a specialized marking tool design to accurately place sash locks for double-hung windows.

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