Drilldown: Patents
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Patents > Year filed:
1850 - 1859
& Office :
BE or
CH or
CL or
IN or
SAX or
US
& Applicant is inventor:
Yes
& National tech categories:
USPC 102/371
& Number of figures:
None
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.