Drilldown: Patents
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Patents > Office :
BE or
GR or
US
& Filing date:
1910 - 1919
& Grant date:
1911
& CPCs :
CPC B64B1/00 or
CPC B64B1/40
& First filing:
No
& Number of figures:
1-3
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.