Drilldown: Patents
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Patents > Year granted:
1875
& Assigned to :
1 or
None
& CPCs :
CPC B64B1/40 or
CPC B64B1/58 or
CPC B64C11/346 or
CPC B64C3/00
& Family year:
1870 - 1879
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.