Blowing machines for the compression, sucking and carrying of grain; corn and grain husking machines; fans for the compression, sucking and carrying of grain; grain driers; grain drills (machines); grain harvesters (machines); grain husking machines; grain mills (machines); grain mixers (machines); grain separating machines; grain separators; pneumatically operated silos for the drying of grains; pneumatically operated silos for the mechanical handling of grains; pneumatically operated silos for the storage of grains; suction fans for the carrying of grain; suction fans for the compression of grain; suction fans for the sucking of grain; machines for the treatment of seeds; seedling processing machines