Duct stretcher

Details Duct stretcher Duct stretcher

2006-04-07

2008-03-18

Wilson, Lee D (Department: 3723)

Metal working

Means to assemble or disassemble

Overedge assembling means

Reexamination Certificate

active

07343657

ABSTRACT:
A duct stretcher that is used to conveniently bring the joining ends of a sheet metal air carrying duct system together so that the two ends can be joined and essentially sealed.

REFERENCES:
patent: 3779108 (1973-12-01), Reiter
patent: 6112404 (2000-09-01), Tarpill
patent: 6988433 (2006-01-01), LeClair

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