Drilldown: Patents
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Patents > Application number:
None
& Supplementary to patent
:
Patent GB-1909-12556
or
Patent GB-1909-26034
or
Patent US-1913-04-21 George Raymond Lawrence
& Assigned to
:
Western Electric Company
or
None
& IPCs:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 19 results in range #1 to #19.