Drilldown: Patents
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Patents > Year filed:
1870 - 1879
& Office :
?? or
BE or
Other
& Applicant firm:
None
& IPCs :
IPC B64B1/00 or
IPC B64C29/00 or
IPC B64C39/00
& CPCs :
CPC B22D33/00 or
CPC B64B1/00 or
CPC B64C39/00
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.