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Filtering by: Subject Crawler tractors -- Oregon Creator Bullard, Howard

Adapting swinging booms to crawler tractors for hardwood and other small log operations

Creator:

Bullard, Howard

Resource Type:

Undergraduate Thesis

Full Text:

{' /$?P SCHOOL OF IORES1RI OREGON STATE COLLEGE , mRlfAtrl$, sREGol[ .l ISEBCIDI}OTIOS thig la not