Drilldown: Patents
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Patents > Year granted:
1920
& Supplementary to patent :
Patent NO-1915-12-15 Carl Alfred Johansson or
None
& CPCs :
CPC B64C33/02 or
CPC B64C35/00 or
CPC B64C39/00
& Number of text pages:
1
& Number of claims:
2-3
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.