Drilldown: Patents
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Patents > Office :
AU or
DE or
US
& Applicant firm:
Sperry Gyroscope Company
& National tech categories :
DE 46c.5 or
USPC 244/22
& IPCs :
IPC B64C13/00 or
None
& Cites these patents :
USPC 244/48 or
None
& Number of text pages:
None
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