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US Patent: 1,026,187
Chuck
Patentee:
Verner J. Wahlstrom (exact or similar names) - Brooklyn, NY

USPTO Classifications:
279/72

Tool Categories:

Assignees:
Bernhard Theodore Burchardi - Brooklyn, NY
Verner J. Wahlstrom - Brooklyn, NY

Manufacturer:
Wahlstrom Tool Co. - Brooklyn, NY

Witnesses:
J. D. H. Bergen
Bernhard Theodore Burchardi
Patent Dates:
Applied: Jun. 05, 1911
Granted: May 14, 1912

Patent Pictures:
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Vintage Machinery entry for Wahlstrom Tool Co.
Description:
Wahlstrom drill chucks remain in production over a century later.

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