Drilldown: Patents
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Patents > Office:
CH
& Related to aircraft :
0? or
1908-12-31 or
1909-11-30 or
1911-07-04 or
Jan 15, 1908 or
Yes
& National tech categories:
CH 129a
& Number of text pages:
2
& Number of claims:
1-3
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.