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US4855562A
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Weld pin for insulation attachment
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US4995426A
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Stock material for forming air turning vanes and air guide devices
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US4855561A
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Resistance weld pin and method of welding
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US4820569A
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Low loss flexible connector for air ducts
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US4614855A
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Resistance weld securement device
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US4561475A
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Universal strap tightening tool
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US4482795A
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Longitudinal finned resistance weld pin
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US3624340A
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Attachment pin for connecting insulation to ducts by resistance welding
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US3591762A
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Welding apparatus
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US3591763A
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Method and applicator pin for attaching insulator material to ducts by resistance welding
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US3582603A
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Method and apparatus for attaching insulation to duct work
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US3457849A
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Motorized damper assembly for ducts of varying widths
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CA901088A
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Method and apparatus for attaching insulation to duct work
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CA746705A
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Damper shaft lock
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CA901089A
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Method and applicator pin for attaching insulator material to ducts by resistance welding
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CA901090A
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Welding apparatus
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CA712046A
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Flexible connector
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CA686076A
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Welding apparatus
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CA758351A
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Fastener device
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