Assignee

DIGITRAX INC

US·1 granted patent·25 citations·filing 2001–2001

Technology mixG01D1 H03K1

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1 record

0183US6747579B1Variable whistle pitch control for model train layoutsDIGITRAX INC·Filed 2001·Granted Jun 8, 2004·25 cites·20 claims

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