Drilldown: Patents
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Patents > Office :
AT or
DE or
DEG or
DK or
GB
& Filing date:
1800 - 1899
& Supplementary to patent :
Patent NO-1915-12-15 Carl Alfred Johansson or
None
& Citations from after 1930:
1891
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.