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US Patent: 508,686
Speed Indicator for Shafting
Patentee:
Wilbur F. Dial (exact or similar names) - Bridgeport, CT

USPTO Classifications:
235/103, 235/112

Tool Categories:
layout tools : measurement gauges

Assignees:
William T. Lintner - Gloversville, NY
William L. Sporborg - Gloversville, NY

Manufacturer:
Not known to have been produced

Witnesses:
William A. Sweet
W. S. Brintnall
George H. Dimond
E. I. Van Horn

Patent Dates:
Applied: Jan. 05, 1893
Granted: Nov. 14, 1893

Patent Pictures:
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