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Jorgensen, Brand of Adjustable Clamp Co.

Pat'd 1901

These were made by ADJUSTABLE CLAMP Co , of Chicago Il, a firm still in existence. (In fact, they dominate the market, and most people say "Jorgensen" when they mean a clamp or hand screw. )

Description of Clamps

Jorgenson clamp, seen in whole view This design became the de facto standard for composite clamps.

Marks

Jaws

Spindles

last revised and validated