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US Patent: 1,677,199
Handle lock for pneumatic tools
Patentee:
John T. Nelson (exact or similar names) - Aurora, IL

USPTO Classifications:
173/169, 403/316, 403/320

Tool Categories:

Assignees:
None

Manufacturer:
Independent Pneumatic Tool Co. - Aurora, IL

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 14, 1925
Granted: Jul. 17, 1928

Patent Pictures:
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Vintage Machinery entry for Thor Power Tool Co.

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