Drilldown: Patents
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Patents > Office :
DE or
DEG
& Filing date:
1800 - 1899
& Application number:
None
& Supplementary to patent :
Patent NO-1915-12-15 Carl Alfred Johansson or
None
& Family year:
1894
& First filing:
Yes
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Showing below up to 12 results in range #1 to #12.