US Patent: 2,046,840 - Screw Driver


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US Patent: 2,046,840

Screw Driver

Patentees:

Henry F. Phillips (exact or similar names) - Piedmont, CA

Thomas M. Fitzpatrick (exact or similar names) - New York, NY

USPTO Classifications:

411/919, 76/119, 81/460

Tool Categories:

screwdrivers

Assignees:

Phillips Screw Company - Wilmington, DE

Manufacturer:

Unknown

Witnesses:

Unknown

Patent Dates:
Applied:	Jan. 15, 1935
Granted:	Jul. 07, 1936

Patent Pictures:

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Description:

Companion patent for the Phillips screw 2046839 and screwdriver 2046838.Manufactured by many companies under license agreements. Examples seen with Patent number made by North Brothers Mfg. Co. Screw driver also marked 'LI.NO.3-Phillips, Stanley as wellas others.