Drilldown: Patents
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Patents > Office
:
??
or
CA
or
LU
or
SU
& Applicant firm:
L. P. R. Company
& National tech categories
:
CA 244/37
or
USPC 244/30
& Citations from after 1930:
None
& Number of claims:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.