Drilldown: Patents
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Patents > Full specification filed date:
1910
& National tech categories:
None
& IPCs :
IPC B64C17/00 or
IPC B64C27/04 or
IPC B64C33/02 or
IPC B64C39/00
& CPCs :
CPC B64C33/025 or
CPC B64C39/00
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Albert Ernest Downing (1) ·
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Showing below up to 12 results in range #1 to #12.
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