Drilldown: Patents
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Patents > Year granted:
1909
& Office :
AU or
DE or
FR or
GB or
SU
& Grant date:
1910
& Assigned to:
None
& Number of text pages:
4-20
& Number of claims:
4-6
& Number of figures:
6-9
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.