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Harald G. Jache Patents |
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Inventor: Jache; Harald G.
Address: Owatonna, MN
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4264359 |
Jewelry alloy |
April 28, 1981 |
| An alloy of gold, palladium, silver, copper, zinc and a small quantity of boron is provided to produce an alloy having a pleasing yellow color, high tarnish resistance and a hardness suitable for use as a material for rings and similar jewelry. |
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