Trailers; Anti-skid chains for vehicles; Automotive engine mounts; Land vehicle transmissions and replacement parts thereof; Metal locking device for trailer hitch couplers; Rear view mirrors; Shaft couplings for land vehicles; Shock absorbers for automobiles; Sideview mirrors for vehicles; Sun blinds adapted for automobiles; Trailer couplings; Trailer hitches; Trailer hitches for vehicles; Transmission cases for land vehicles; Vehicle seat belt pre-tensioners