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US Patent: 1,762,315
Ratchet screw driver
Patentees:
Henry A. Ryther (exact or similar names) - Millers Falls, MA
Donald B. Swain (exact or similar names) - Millers Falls, MA

USPTO Classifications:
74/124, 81/29

Tool Categories:
screwdrivers : screwdriver mechanisms : spiral screwdrivers

Assignees:
Millers Falls Co. - Millers Falls, MA

Manufacturer:
Millers Falls Co. - Millers Falls, MA

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 23, 1925
Granted: Jun. 10, 1930

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Steve Gosselin
Randy Roeder's Millers Falls Co. site
"Vintage Machinery" entry for Millers Falls Co.

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