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Willis R. Campbell

RAND Corporation

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Publication

Featured researches published by Willis R. Campbell.

Archive | 1976

Large round bale handling apparatus

John K. Hale; Willis R. Campbell

Archive | 1980

Automatic bale ejection drive

T. William Waldrop; Willis R. Campbell

Archive | 1978

Bale handling means

Richard E. Jennings; Willis R. Campbell; Thomas W. Waldrop

Archive | 1977

Twine wrapping mechanism for a roll forming machine

Willis R. Campbell; Thomas W. Waldrop

Archive | 1978

Center pivot dispensing apparatus

Willis R. Campbell; John H. Freimuth

Archive | 1983

Bale retainer for roll baling machine

Charles A. Parrish; John H. Freimuth; Willis R. Campbell; Anthony F. Diederich; James T. Clevenger

Archive | 1984

Stripper bar for roll baling machine

John H. Freimuth; Willis R. Campbell

Archive | 1977

Collection and recycling apparatus for crop material particles in a roll forming machine

Donald L. Sheesley; Edward T. Eggers; Willis R. Campbell

Archive | 1971

APRON DRIVE FOR A MANURE SPREADER

Willis R. Campbell; Warren H. Brackbill

Archive | 1995

Round bale wrapping apparatus and method

Willis R. Campbell; Shaun A. Seymour

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John H. Freimuth

RAND Corporation

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Robert R. Todd

RAND Corporation

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Thomas W. Waldrop

RAND Corporation

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Donald L. Sheesley

RAND Corporation

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Edward T. Eggers

RAND Corporation

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T. William Waldrop

RAND Corporation

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John K. Hale

RAND Corporation

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Warren H. Brackbill

RAND Corporation

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William F. Ostergren

RAND Corporation

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