Drilldown: Patents
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Patents > Filing date:
1970 - 1979
& Cites
:
Patent US 4150420A
or
Other
or
None
& Links
:
155-0078-00
or
581
or
7A42
or
7D15
or
Sampling ![](/tekwiki/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 8 results in range #1 to #8.