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US Patent: 2,900,733
Indicators with resilient means for reversing the bias of the operating spindle
Patentee:
Charles Zelnick (exact or similar names) - Saginaw, MI

USPTO Classifications:
33/556

Tool Categories:

Assignees:
Lufkin Rule Company - Saginaw, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: May 04, 1955
Granted: Aug. 25, 1959

Patent Pictures:
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