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US Patent: 909,538
Micrometer Caliper Square
Patentee:
Frank S. Buckminster (exact or similar names) - Pasadena, Los Angeles County, CA

USPTO Classifications:
33/822

Tool Categories:
metalworking tools : machinist tools : measuring tools : indicating calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edmund A. Strause
M. A. Jones
Trimble Barkelew

Patent Dates:
Applied: Jan. 17, 1907
Granted: Jan. 12, 1909

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