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Methods and devices for joining two or more panels together are provided. The methods allow joining of panels of material such as glass fiber board, and are particularly useful for forming ducts or tubes. Fasteners provided have two planar members, joined together, and the planar members have protru

Methods and devices for joining two or more panels together are provided. The methods allow joining of panels of material such as glass fiber board, and are particularly useful for forming ducts or tubes. Fasteners provided have two planar members, joined together, and the planar members have protrusions that are integral to the planar members and are intended to at least partially protrude the panels joined by the devices.

대표청구항

1. A fastener comprising two contiguous planar members, each planar member having teeth-like projections thereon which are integral with the planar member, and wherein each planar member has a slot and wherein said members are joined by interconnecting said slots.

1. A fastener comprising two contiguous planar members, each planar member having teeth-like projections thereon which are integral with the planar member, and wherein each planar member has a slot and wherein said members are joined by interconnecting said slots.