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L & H Designs Limited Patents |
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Assignee: L & H Designs Limited
Address: Gloucestershire, GB2
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4403409 |
Fastening apparatus and control systems therefor |
September 13, 1983 |
| Apparatus operable to fasten together overlying metal sheets has a cooperating piercing-and-forming punch and die set, which partially sever and displace a localized region of the sheets out of the planes thereof, and a flattening punch which then operates to spread the displaced region |
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