Drilldown: Patents
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Patents > Year granted:
1920
& Office
:
AT
or
CH
or
DEG
or
GB
or
MX
or
Other
& National tech categories
:
AT 77d
or
HU V/h
or
USPC 244/153R
& Cites these patents:
None
& Number of text pages:
3-4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 12 results in range #1 to #12.
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