Inventor · disambiguated record

Wally E. Shaffer

Also filed as: SHAFFER WALLY E

1 granted patent·2 citations·filing 2015–2015

19Inventor score

Technology areasE21B

Files withCHARLES MACHINE WORKS1

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1 record

0165US9850715B2Modular compaction boring machine systemCHARLES MACHINE WORKS·Filed 2015·Granted Dec 26, 2017·2 cites·45 claims

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