Drilldown: Patents
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Patents > Office:
DE
& Supplementary to patent :
DE79446 or
Patent NO-1915-12-15 Carl Alfred Johansson or
Patent SE-1906-23283 or
None
& National tech categories:
DE 77h.10
& Number of figures:
None
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Showing below up to 2 results in range #1 to #2.