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US Patent: 1,863,673
Indicator Jaw Gauge
Patentee:
Alexander Schraven (exact or similar names) - Essen, Germany

USPTO Classifications:
33/802

Tool Categories:
layout tools : measurement gauges

Assignees:
Fried. Krupp Aktiengesellschaft - Essen-on-the-Ruhr, Germany

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 29, 1930
Granted: Jun. 21, 1932

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