1977 - Volume #1, Issue #6, Page #13
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Locking Zipper For Plastic Sheets
New from the Startex Corp. is a locking system for tieing plastic sheets together and holding them in place.
The locking device works like a portable zipper. However, instead of zipping together, it uses a rod and tube principle to lock sheets of plastic in place to keep them from being torn by the wind, and to h..........


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1977 - Volume #1, Issue #6