Drilldown: Patents
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Patents > Office :
CL or
DE
& Inventor country:
Wales
& National tech categories :
DE 77h.6 or
USPC 244/30
& CPCs :
CPC B64C27/54 or
CPC B64C2700/6218
& Citations from after 1930:
None
& Number of text pages:
1-2
& Number of figures:
None
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Showing below up to 1 result in range #1 to #1.