Drilldown: Patents
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Patents > Full specification filed date:
1919
& National tech categories :
IT 8 or
None
& IPCs :
IPC B64B1/62 or
IPC B64C1/00 or
IPC B64C13/00 or
IPC B64C3/18 or
IPC B64C35/00
& Number of claims:
1-2
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.