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US Patent: 730,804
Screw-driver
Patentee:
Laroy S. Starrett (exact or similar names) - Athol, MA

USPTO Classifications:
81/453

Tool Categories:
screwdrivers

Assignees:
L. S. Starrett Co. - Athol, MA

Manufacturer:
L. S. Starrett Co. - Athol, MA

Witnesses:
Frank E. Wing
Willard G. Nims

Patent Dates:
Applied: Oct. 31, 1901
Granted: Jun. 09, 1903

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
Sold by the L.S.Starrett Co. as the #551, A screw holding screwdriver with replaceable/interchangeable tips. Patent #729004 May 26, 1903 also by Laroy S. Starrett, was sold as the #550. Both the #550 and #551 are sold in the #17 Starrett catalog 1905 , but by 1925 only the #551 is offered.Sample has both Patent dates on the screw holder and the screw holder is marked #551. The screw driver has only the 5/26/1903 patent on it and the #550.

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