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US Patent: 976,559
Caliper Gage
Patentees:
Joseph Dittrich (exact or similar names) - New York, NY
Frank Devecis (exact or similar names) - New York, NY

USPTO Classifications:
33/810

Tool Categories:
rules : rule attachments

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Sigmund Herzog
M. Friedlander
Emanuel Herzog
S. Birnbaum

Patent Dates:
Applied: Dec. 28, 1909
Granted: Nov. 22, 1910

Patent Pictures:
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