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Scheiwiller; Rolf Patents |
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Assignee: Scheiwiller; Rolf
Address: Hergiswil, CH
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D434857 |
Paving stone |
December 5, 2000 |
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| 5348417 |
Compound pavement stone |
September 20, 1994 |
| The side surfaces of compound stones are provided with relatively flat elements which interlock with little play when said stones are laid out, while adjoining side surfaces of neighboring stones are in contact along two lines only. A compromise between a sufficient mutual securement of |
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