Expired_Patent:
Euclid/Terex Dozer
Expired_Patent:
Cat D7G with Clark Forestry Plough
Expired_Patent:
Komatsu and Box
Expired_Patent:
Cat D6H Buldozer
Expired_Patent:
Cat D6H
Expired_Patent:
Komatsu Dozer
Expired_Patent:
Helix Project Fill Area
Expired_Patent:
Cat D6H and Roller
Expired_Patent:
Ford TW25
Expired_Patent:
Alpine Cats
Expired_Patent:
Komatsu D51-PX
Expired_Patent:
Balfour Terex Scraper and Cat D9
Expired_Patent:
Hewden Scottish Land Cat D8
Expired_Patent:
Cat 951 Timber Tractor
Expired_Patent:
Biwater Cat D8 and Scraper Box
Expired_Patent:
Go-your-own-way
Expired_Patent:
Cat D6D
Expired_Patent:
Back with Balfours
Expired_Patent:
Aveling-Barford CD 014 Dozer