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US Patent: 4,091,696
Pliers
Patentee:
Ulf Wahlberg - Enkoping, Sweden

USPTO Classifications:
81/388, 81/396

Tool Categories:
pliers

Assignees:
AB Bahco Verktyg - Enkoping, Sweden

Manufacturer:
AB Bahco Verktyg - Enkoping, Sweden

Witnesses:
none listed

Patent Dates:
Applied: Jun. 27, 1977
Granted: May 30, 1978

Patent Pictures: [ 1 | 2 ]
Ulf Wahlberg patent May 30, 1978
USPTO pdf tiff
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4,091,696 (ESPACENET)
Description:
Adjustable pivot point using a rack and worm adjustment; improvement on the design in SE-215,696. The design allows the jaws to be set parallel throughout the pliers' capacity.

Marketed in the U.S. as the BAHCO SHIFT-O-FIX pliers.

Patents 2,444,135, 3,824,882 and SE-215,696 are cited as references.

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