Patents for inventions
schema:identifier →
<n60f3de51e5f14ff7b09fa93085d2f606b2>
|
schema:property |
"NL-AmRIJ" |
| schema:value | "238996" |
schema:about →
<n60f3de51e5f14ff7b09fa93085d2f606b1>
|
schema:alternate |
"Musical instruments--Patents--History" |