Drilldown: Patents
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- Person (2136)
- Publications (24569)
- Techtypes (2381)
Patents > Office :
DE or
JP or
US
& Applicant firm:
None
& Filing date:
1897
& First filing:
No
& Citations from after 1930:
3
& Number of text pages:
3
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Showing below up to 1 result in range #1 to #1.